51620576 has 24 divisors (see below), whose sum is σ = 116146800. Its totient is φ = 22123008.

The previous prime is 51620567. The next prime is 51620581. The reversal of 51620576 is 67502615.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 115001 + ... + 115448.

It is an arithmetic number, because the mean of its divisors is an integer number (4839450).

Almost surely, 2^51620576 is an apocalyptic number.

51620576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51620576 is an abundant number, since it is smaller than the sum of its proper divisors (64526224).

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

51620576 is a wasteful number, since it uses less digits than its factorization.

51620576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230466 (or 230458 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 51620576 is about 7184.7460637103. The cubic root of 51620576 is about 372.3410753973.

The spelling of 51620576 in words is "fifty-one million, six hundred twenty thousand, five hundred seventy-six".