51295732 has 48 divisors (see below), whose sum is σ = 99392832. Its totient is φ = 23063040.

The previous prime is 51295729. The next prime is 51295787. The reversal of 51295732 is 23759215.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154807 + ... + 155137.

It is an arithmetic number, because the mean of its divisors is an integer number (2070684).

Almost surely, 2^51295732 is an apocalyptic number.

51295732 is the 5848-th pentagonal number.

It is an amenable number.

51295732 is a deficient number, since it is larger than the sum of its proper divisors (48097100).

51295732 is a wasteful number, since it uses less digits than its factorization.

51295732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 446 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 51295732 is about 7162.1038808440. The cubic root of 51295732 is about 371.5583941510.

The spelling of 51295732 in words is "fifty-one million, two hundred ninety-five thousand, seven hundred thirty-two".