51589556 has 12 divisors (see below), whose sum is σ = 90736800. Its totient is φ = 25664760.

The previous prime is 51589501. The next prime is 51589561. The reversal of 51589556 is 65598515.

It is a super-2 number, since 2×51589556² = 5322964576554272, which contains 22 as substring.

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, 31610 + ... + 33201.

It is an arithmetic number, because the mean of its divisors is an integer number (7561400).

Almost surely, 2^51589556 is an apocalyptic number.

It is an amenable number.

51589556 is a deficient number, since it is larger than the sum of its proper divisors (39147244).

51589556 is a wasteful number, since it uses less digits than its factorization.

51589556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65014 (or 65012 counting only the distinct ones).

The product of its digits is 270000, while the sum is 44.

The square root of 51589556 is about 7182.5869991250. The cubic root of 51589556 is about 372.2664776601.

The spelling of 51589556 in words is "fifty-one million, five hundred eighty-nine thousand, five hundred fifty-six".