51372432 has 60 divisors (see below), whose sum is σ = 150032064. Its totient is φ = 16378560.

The previous prime is 51372403. The next prime is 51372469. The reversal of 51372432 is 23427315.

It is a junction number, because it is equal to n+sod(n) for n = 51372396 and 51372405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4444 + ... + 11067.

Almost surely, 2^51372432 is an apocalyptic number.

It is an amenable number.

51372432 is an abundant number, since it is smaller than the sum of its proper divisors (98659632).

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

51372432 is a wasteful number, since it uses less digits than its factorization.

51372432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15548 (or 15539 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 51372432 is about 7167.4564526058. The cubic root of 51372432 is about 371.7434929585.

Adding to 51372432 its reverse (23427315), we get a palindrome (74799747).

It can be divided in two parts, 5137 and 2432, that added together give a square (7569 = 87²).

The spelling of 51372432 in words is "fifty-one million, three hundred seventy-two thousand, four hundred thirty-two".