51587836 has 12 divisors (see below), whose sum is σ = 90387360. Its totient is φ = 25762880.

The previous prime is 51587797. The next prime is 51587849. The reversal of 51587836 is 63878515.

It is a super-2 number, since 2×51587836² = 5322609646325792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51587792 and 51587801.

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, 3796 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (7532280).

Almost surely, 2^51587836 is an apocalyptic number.

It is an amenable number.

51587836 is a deficient number, since it is larger than the sum of its proper divisors (38799524).

51587836 is a wasteful number, since it uses less digits than its factorization.

51587836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15524 (or 15522 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 51587836 is about 7182.4672641092. The cubic root of 51587836 is about 372.2623404825.

The spelling of 51587836 in words is "fifty-one million, five hundred eighty-seven thousand, eight hundred thirty-six".