51039882 has 80 divisors (see below), whose sum is σ = 124198272. Its totient is φ = 15603840.

The previous prime is 51039847. The next prime is 51039893. The reversal of 51039882 is 28893015.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118207 + ... + 118637.

Almost surely, 2^51039882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51039882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62099136).

51039882 is an abundant number, since it is smaller than the sum of its proper divisors (73158390).

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

51039882 is a wasteful number, since it uses less digits than its factorization.

51039882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 51039882 is about 7144.2201813774. The cubic root of 51039882 is about 370.9396181425.

The spelling of 51039882 in words is "fifty-one million, thirty-nine thousand, eight hundred eighty-two".