51656052 has 48 divisors (see below), whose sum is σ = 138185600. Its totient is φ = 14712192.

The previous prime is 51656027. The next prime is 51656053. The reversal of 51656052 is 25065615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51656053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32574 + ... + 34122.

Almost surely, 2^51656052 is an apocalyptic number.

It is an amenable number.

51656052 is an abundant number, since it is smaller than the sum of its proper divisors (86529548).

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

51656052 is a wasteful number, since it uses less digits than its factorization.

51656052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 51656052 is about 7187.2144812855. The cubic root of 51656052 is about 372.4263524204.

The spelling of 51656052 in words is "fifty-one million, six hundred fifty-six thousand, fifty-two".