51369132 has 18 divisors (see below), whose sum is σ = 119919268. Its totient is φ = 17114768.

The previous prime is 51369127. The next prime is 51369169. The reversal of 51369132 is 23196315.

It is a self number, because there is not a number n which added to its sum of digits gives 51369132.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23794 + ... + 25862.

Almost surely, 2^51369132 is an apocalyptic number.

It is an amenable number.

51369132 is an abundant number, since it is smaller than the sum of its proper divisors (68550136).

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

51369132 is an equidigital number, since it uses as much as digits as its factorization.

51369132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145 (or 2074 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 51369132 is about 7167.2262417200. The cubic root of 51369132 is about 371.7355329188.

The spelling of 51369132 in words is "fifty-one million, three hundred sixty-nine thousand, one hundred thirty-two".