51523332492 has 24 divisors (see below), whose sum is σ = 120228186736. Its totient is φ = 17173433088.

The previous prime is 51523332457. The next prime is 51523332529. The reversal of 51523332492 is 29423332515.

It is a self number, because there is not a number n which added to its sum of digits gives 51523332492.

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, 102528 + ... + 336984.

Almost surely, 2^51523332492 is an apocalyptic number.

It is an amenable number.

51523332492 is an abundant number, since it is smaller than the sum of its proper divisors (68704854244).

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

51523332492 is a wasteful number, since it uses less digits than its factorization.

51523332492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252777 (or 252775 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The spelling of 51523332492 in words is "fifty-one billion, five hundred twenty-three million, three hundred thirty-two thousand, four hundred ninety-two".