51502086 has 24 divisors (see below), whose sum is σ = 115436880. Its totient is φ = 16575216.

The previous prime is 51502079. The next prime is 51502091. The reversal of 51502086 is 68020515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48810 + ... + 49853.

It is an arithmetic number, because the mean of its divisors is an integer number (4809870).

Almost surely, 2^51502086 is an apocalyptic number.

51502086 is an abundant number, since it is smaller than the sum of its proper divisors (63934794).

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

51502086 is a wasteful number, since it uses less digits than its factorization.

51502086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98700 (or 98697 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 51502086 is about 7176.4953842387. The cubic root of 51502086 is about 372.0559662588.

The spelling of 51502086 in words is "fifty-one million, five hundred two thousand, eighty-six".