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55760888069 = 164089339821
BaseRepresentation
bin110011111011100110…
…111010000100000101
312022221001221121101122
4303323212322010011
51403144241404234
641341033203325
74012543504535
oct637346720405
9168831847348
1055760888069
1121714627577
12a982260545
135348438c33
1429ad8994c5
1516b54e992e
hexcfb9ba105

55760888069 has 4 divisors (see below), whose sum is σ = 55761391980. Its totient is φ = 55760384160.

The previous prime is 55760888033. The next prime is 55760888111. The reversal of 55760888069 is 96088806755.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96088806755 = 519217761351.

It can be written as a sum of positive squares in 2 ways, for example, as 42423640900 + 13337247169 = 205970^2 + 115487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55760888069 is a prime.

It is a super-2 number, since 2×557608880692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55760888269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5822 + ... + 333999.

It is an arithmetic number, because the mean of its divisors is an integer number (13940347995).

Almost surely, 255760888069 is an apocalyptic number.

It is an amenable number.

55760888069 is a deficient number, since it is larger than the sum of its proper divisors (503911).

55760888069 is a wasteful number, since it uses less digits than its factorization.

55760888069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503910.

The product of its (nonzero) digits is 29030400, while the sum is 62.

The spelling of 55760888069 in words is "fifty-five billion, seven hundred sixty million, eight hundred eighty-eight thousand, sixty-nine".

Divisors: 1 164089 339821 55760888069