51542031504 has 40 divisors (see below), whose sum is σ = 133170664032. Its totient is φ = 17178042880.

The previous prime is 51542031467. The next prime is 51542031511. The reversal of 51542031504 is 40513024515.

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, 247624 + ... + 405464.

Almost surely, 2^51542031504 is an apocalyptic number.

It is an amenable number.

51542031504 is an abundant number, since it is smaller than the sum of its proper divisors (81628632528).

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

51542031504 is a wasteful number, since it uses less digits than its factorization.

51542031504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164655 (or 164649 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 51542031504 in words is "fifty-one billion, five hundred forty-two million, thirty-one thousand, five hundred four".