557256938049 has 24 divisors (see below), whose sum is σ = 922011742080. Its totient is φ = 317707161408.

The previous prime is 557256938027. The next prime is 557256938081. The reversal of 557256938049 is 940839652755.

557256938049 is a `hidden beast` number, since 5 + 572 + 56 + 9 + 3 + 8 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 557256938049 - 2²⁵ = 557223383617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (557256938549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10046772 + ... + 10102085.

It is an arithmetic number, because the mean of its divisors is an integer number (38417155920).

Almost surely, 2^557256938049 is an apocalyptic number.

It is an amenable number.

557256938049 is a deficient number, since it is larger than the sum of its proper divisors (364754804031).

557256938049 is a wasteful number, since it uses less digits than its factorization.

557256938049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20149309 (or 20149306 counting only the distinct ones).

The product of its (nonzero) digits is 81648000, while the sum is 63.

The spelling of 557256938049 in words is "five hundred fifty-seven billion, two hundred fifty-six million, nine hundred thirty-eight thousand, forty-nine".