51326232 has 16 divisors (see below), whose sum is σ = 128315640. Its totient is φ = 17108736.

The previous prime is 51326203. The next prime is 51326251. The reversal of 51326232 is 23262315.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2138593 = 51326232 / (5 + 1 + 3 + 2 + 6 + 2 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069273 + ... + 1069320.

Almost surely, 2^51326232 is an apocalyptic number.

It is an amenable number.

51326232 is an abundant number, since it is smaller than the sum of its proper divisors (76989408).

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

51326232 is a wasteful number, since it uses less digits than its factorization.

51326232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138602 (or 2138598 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 51326232 is about 7164.2328270374. The cubic root of 51326232 is about 371.6320213661.

Adding to 51326232 its reverse (23262315), we get a palindrome (74588547).

The spelling of 51326232 in words is "fifty-one million, three hundred twenty-six thousand, two hundred thirty-two".