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55323052405 = 511064610481
BaseRepresentation
bin110011100001100000…
…101100100101110101
312021210120002020202221
4303201200230211311
51401300200134110
641225353002341
73665646120655
oct634140544565
9167716066687
1055323052405
112150a46a115
12a87b6b33b1
1352a880ac8a
14296b686365
15168bd607da
hexce182c975

55323052405 has 4 divisors (see below), whose sum is σ = 66387662892. Its totient is φ = 44258441920.

The previous prime is 55323052403. The next prime is 55323052423. The reversal of 55323052405 is 50425032355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35742927364 + 19580125041 = 189058^2 + 139929^2 .

It is not a de Polignac number, because 55323052405 - 21 = 55323052403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55323052403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5532305236 + ... + 5532305245.

It is an arithmetic number, because the mean of its divisors is an integer number (16596915723).

Almost surely, 255323052405 is an apocalyptic number.

It is an amenable number.

55323052405 is a deficient number, since it is larger than the sum of its proper divisors (11064610487).

55323052405 is a wasteful number, since it uses less digits than its factorization.

55323052405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064610486.

The product of its (nonzero) digits is 90000, while the sum is 34.

The spelling of 55323052405 in words is "fifty-five billion, three hundred twenty-three million, fifty-two thousand, four hundred five".

Divisors: 1 5 11064610481 55323052405