51323392 has 40 divisors (see below), whose sum is σ = 104346000. Its totient is φ = 25211904.

The previous prime is 51323353. The next prime is 51323399. The reversal of 51323392 is 29332315.

It is a self number, because there is not a number n which added to its sum of digits gives 51323392.

It is not an unprimeable number, because it can be changed into a prime (51323399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29359 + ... + 31057.

It is an arithmetic number, because the mean of its divisors is an integer number (2608650).

Almost surely, 2^51323392 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 51323392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52173000).

51323392 is an abundant number, since it is smaller than the sum of its proper divisors (53022608).

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

51323392 is an equidigital number, since it uses as much as digits as its factorization.

51323392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1760 counting only the distinct ones).

The product of its digits is 4860, while the sum is 28.

The square root of 51323392 is about 7164.0346174485. The cubic root of 51323392 is about 371.6251668178.

It can be divided in two parts, 51323 and 392, that added together give a palindrome (51715).

The spelling of 51323392 in words is "fifty-one million, three hundred twenty-three thousand, three hundred ninety-two".