51529285456 has 20 divisors (see below), whose sum is σ = 108914171904. Its totient is φ = 23422402400.

The previous prime is 51529285447. The next prime is 51529285513. The reversal of 51529285456 is 65458292515.

It is a super-3 number, since 3×51529285456³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146389840 + ... + 146390191.

Almost surely, 2^51529285456 is an apocalyptic number.

It is an amenable number.

51529285456 is an abundant number, since it is smaller than the sum of its proper divisors (57384886448).

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

51529285456 is a wasteful number, since it uses less digits than its factorization.

51529285456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292780050 (or 292780044 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 52.

The spelling of 51529285456 in words is "fifty-one billion, five hundred twenty-nine million, two hundred eighty-five thousand, four hundred fifty-six".