51086536 has 16 divisors (see below), whose sum is σ = 95865840. Its totient is φ = 25522320.

The previous prime is 51086501. The next prime is 51086549. The reversal of 51086536 is 63568015.

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, 13795 + ... + 17101.

It is an arithmetic number, because the mean of its divisors is an integer number (5991615).

Almost surely, 2^51086536 is an apocalyptic number.

It is an amenable number.

51086536 is a deficient number, since it is larger than the sum of its proper divisors (44779304).

51086536 is a wasteful number, since it uses less digits than its factorization.

51086536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 51086536 is about 7147.4845924983. The cubic root of 51086536 is about 371.0526052553.

The spelling of 51086536 in words is "fifty-one million, eighty-six thousand, five hundred thirty-six".