51056523622534 has 16 divisors (see below), whose sum is σ = 78074711208000. Its totient is φ = 25035957370944.

The previous prime is 51056523622493. The next prime is 51056523622553. The reversal of 51056523622534 is 43522632565015.

It is a happy number.

It is a super-2 number, since 2×51056523622534² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 1084347447 + ... + 1084394530.

It is an arithmetic number, because the mean of its divisors is an integer number (4879669450500).

Almost surely, 2^{51056523622534} is an apocalyptic number.

51056523622534 is a deficient number, since it is larger than the sum of its proper divisors (27018187585466).

51056523622534 is a wasteful number, since it uses less digits than its factorization.

51056523622534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168742207.

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 51056523622534 in words is "fifty-one trillion, fifty-six billion, five hundred twenty-three million, six hundred twenty-two thousand, five hundred thirty-four".