51554433532 has 12 divisors (see below), whose sum is σ = 103108867120. Its totient is φ = 22094757216.

The previous prime is 51554433493. The next prime is 51554433547. The reversal of 51554433532 is 23533445515.

51554433532 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920614857 + ... + 920614912.

Almost surely, 2^51554433532 is an apocalyptic number.

It is an amenable number.

51554433532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51554433532 is a wasteful number, since it uses less digits than its factorization.

51554433532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841229780 (or 1841229778 counting only the distinct ones).

The product of its digits is 540000, while the sum is 40.

The spelling of 51554433532 in words is "fifty-one billion, five hundred fifty-four million, four hundred thirty-three thousand, five hundred thirty-two".