57403777256 has 16 divisors (see below), whose sum is σ = 123008094240. Its totient is φ = 24601618800.

The previous prime is 57403777253. The next prime is 57403777267. The reversal of 57403777256 is 65277730475.

It is a junction number, because it is equal to n+sod(n) for n = 57403777198 and 57403777207.

It is not an unprimeable number, because it can be changed into a prime (57403777253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512533670 + ... + 512533781.

It is an arithmetic number, because the mean of its divisors is an integer number (7688005890).

Almost surely, 2^57403777256 is an apocalyptic number.

57403777256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

57403777256 is an abundant number, since it is smaller than the sum of its proper divisors (65604316984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57403777256 is a wasteful number, since it uses less digits than its factorization.

57403777256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025067464 (or 1025067460 counting only the distinct ones).

The product of its (nonzero) digits is 8643600, while the sum is 53.

The spelling of 57403777256 in words is "fifty-seven billion, four hundred three million, seven hundred seventy-seven thousand, two hundred fifty-six".