51590376 has 96 divisors (see below), whose sum is σ = 149652360. Its totient is φ = 15998976.

The previous prime is 51590353. The next prime is 51590387. The reversal of 51590376 is 67309515.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37527876 + 14062500 = 6126^2 + 3750^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 51590376.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138126 + ... + 138498.

Almost surely, 2^51590376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51590376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74826180).

51590376 is an abundant number, since it is smaller than the sum of its proper divisors (98061984).

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

51590376 is a wasteful number, since it uses less digits than its factorization.

51590376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 51590376 is about 7182.6440813951. The cubic root of 51590376 is about 372.2684500030.

The spelling of 51590376 in words is "fifty-one million, five hundred ninety thousand, three hundred seventy-six".