51652660432 has 10 divisors (see below), whose sum is σ = 100077029618. Its totient is φ = 25826330208.

The previous prime is 51652660399. The next prime is 51652660453. The reversal of 51652660432 is 23406625615.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27607816336 + 24044844096 = 166156^2 + 155064^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614145623 + ... + 1614145654.

Almost surely, 2^51652660432 is an apocalyptic number.

It is an amenable number.

51652660432 is a deficient number, since it is larger than the sum of its proper divisors (48424369186).

51652660432 is a wasteful number, since it uses less digits than its factorization.

51652660432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228291285 (or 3228291279 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 51652660432 in words is "fifty-one billion, six hundred fifty-two million, six hundred sixty thousand, four hundred thirty-two".