51544623053256 has 32 divisors (see below), whose sum is σ = 128861851272000. Its totient is φ = 17181501865920.

The previous prime is 51544623053233. The next prime is 51544623053263. The reversal of 51544623053256 is 65235032644515.

It is a junction number, because it is equal to n+sod(n) for n = 51544623053199 and 51544623053208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9493845 + ... + 13900443.

It is an arithmetic number, because the mean of its divisors is an integer number (4026932852250).

Almost surely, 2^{51544623053256} is an apocalyptic number.

It is an amenable number.

51544623053256 is an abundant number, since it is smaller than the sum of its proper divisors (77317228218744).

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

51544623053256 is a wasteful number, since it uses less digits than its factorization.

51544623053256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893989 (or 4893985 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 51.

The spelling of 51544623053256 in words is "fifty-one trillion, five hundred forty-four billion, six hundred twenty-three million, fifty-three thousand, two hundred fifty-six".