51590568 has 16 divisors (see below), whose sum is σ = 128976480. Its totient is φ = 17196848.

The previous prime is 51590533. The next prime is 51590569. The reversal of 51590568 is 86509515.

It is not an unprimeable number, because it can be changed into a prime (51590569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074780 + ... + 1074827.

It is an arithmetic number, because the mean of its divisors is an integer number (8061030).

Almost surely, 2^51590568 is an apocalyptic number.

It is an amenable number.

51590568 is an abundant number, since it is smaller than the sum of its proper divisors (77385912).

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

51590568 is a wasteful number, since it uses less digits than its factorization.

51590568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149616 (or 2149612 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 51590568 is about 7182.6574469342. The cubic root of 51590568 is about 372.2689118169.

The spelling of 51590568 in words is "fifty-one million, five hundred ninety thousand, five hundred sixty-eight".