51550433560 has 32 divisors (see below), whose sum is σ = 116873895600. Its totient is φ = 20462765440.

The previous prime is 51550433549. The next prime is 51550433573. The reversal of 51550433560 is 6533405515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4913695 + ... + 4924174.

Almost surely, 2^51550433560 is an apocalyptic number.

It is an amenable number.

51550433560 is an abundant number, since it is smaller than the sum of its proper divisors (65323462040).

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

51550433560 is a wasteful number, since it uses less digits than its factorization.

51550433560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838011 (or 9838007 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 51550433560 in words is "fifty-one billion, five hundred fifty million, four hundred thirty-three thousand, five hundred sixty".