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55902929669 = 56539889073
BaseRepresentation
bin110100000100000100…
…110000001100000101
312100021222020001211122
4310010010300030011
51403442122222134
641403105443325
74016220030146
oct640404601405
9170258201748
1055902929669
1121787823524
12aa01940545
13536b9ac612
1429c46b1acd
1516c2c0602e
hexd04130305

55902929669 has 4 divisors (see below), whose sum is σ = 55912824396. Its totient is φ = 55893034944.

The previous prime is 55902929647. The next prime is 55902929729. The reversal of 55902929669 is 96692920955.

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 31602172900 + 24300756769 = 177770^2 + 155887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55902929669 is a prime.

It is a super-2 number, since 2×559029296692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55902929629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4938884 + ... + 4950189.

It is an arithmetic number, because the mean of its divisors is an integer number (13978206099).

Almost surely, 255902929669 is an apocalyptic number.

It is an amenable number.

55902929669 is a deficient number, since it is larger than the sum of its proper divisors (9894727).

55902929669 is an equidigital number, since it uses as much as digits as its factorization.

55902929669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9894726.

The product of its (nonzero) digits is 23619600, while the sum is 62.

The spelling of 55902929669 in words is "fifty-five billion, nine hundred two million, nine hundred twenty-nine thousand, six hundred sixty-nine".

Divisors: 1 5653 9889073 55902929669