51592788 has 84 divisors (see below), whose sum is σ = 145889268. Its totient is φ = 15863040.

The previous prime is 51592777. The next prime is 51592811. The reversal of 51592788 is 88729515.

It is a happy number.

51592788 is a `hidden beast` number, since 51 + 592 + 7 + 8 + 8 = 666.

51592788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 43401744 = 2862^2 + 6588^2 .

It is a super-2 number, since 2×51592788² = 5323631547225888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 37228 + ... + 38588.

It is an arithmetic number, because the mean of its divisors is an integer number (1736777).

Almost surely, 2^51592788 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 51592788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72944634).

51592788 is an abundant number, since it is smaller than the sum of its proper divisors (94296480).

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

51592788 is a wasteful number, since it uses less digits than its factorization.

51592788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1379 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 51592788 is about 7182.8119841744. The cubic root of 51592788 is about 372.2742514566.

The spelling of 51592788 in words is "fifty-one million, five hundred ninety-two thousand, seven hundred eighty-eight".