51583392 has 120 divisors (see below), whose sum is σ = 173438496. Its totient is φ = 14732928.

The previous prime is 51583391. The next prime is 51583397. The reversal of 51583392 is 29338515.

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

It is not an unprimeable number, because it can be changed into a prime (51583391) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16723 + ... + 19565.

Almost surely, 2^51583392 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 51583392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86719248).

51583392 is an abundant number, since it is smaller than the sum of its proper divisors (121855104).

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

51583392 is a wasteful number, since it uses less digits than its factorization.

51583392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872 (or 2855 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 51583392 is about 7182.1578930012. The cubic root of 51583392 is about 372.2516507446.

The spelling of 51583392 in words is "fifty-one million, five hundred eighty-three thousand, three hundred ninety-two".