51132404 has 24 divisors (see below), whose sum is σ = 93623040. Its totient is φ = 24389024.

The previous prime is 51132397. The next prime is 51132449. The reversal of 51132404 is 40423115.

It is a super-2 number, since 2×51132404² = 5229045477638432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65762 + ... + 66534.

It is an arithmetic number, because the mean of its divisors is an integer number (3900960).

Almost surely, 2^51132404 is an apocalyptic number.

It is an amenable number.

51132404 is a deficient number, since it is larger than the sum of its proper divisors (42490636).

51132404 is a wasteful number, since it uses less digits than its factorization.

51132404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51132404 is about 7150.6925538720. The cubic root of 51132404 is about 371.1636217849.

Adding to 51132404 its reverse (40423115), we get a palindrome (91555519).

The spelling of 51132404 in words is "fifty-one million, one hundred thirty-two thousand, four hundred four".