51465732 has 24 divisors (see below), whose sum is σ = 127151136. Its totient is φ = 16146048.

The previous prime is 51465731. The next prime is 51465751. The reversal of 51465732 is 23756415.

It is a junction number, because it is equal to n+sod(n) for n = 51465693 and 51465702.

It is not an unprimeable number, because it can be changed into a prime (51465731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125938 + ... + 126345.

It is an arithmetic number, because the mean of its divisors is an integer number (5297964).

Almost surely, 2^51465732 is an apocalyptic number.

It is an amenable number.

51465732 is an abundant number, since it is smaller than the sum of its proper divisors (75685404).

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

51465732 is a wasteful number, since it uses less digits than its factorization.

51465732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252307 (or 252305 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 51465732 is about 7173.9620852079. The cubic root of 51465732 is about 371.9684040687.

It can be divided in two parts, 5146 and 5732, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 51465732 in words is "fifty-one million, four hundred sixty-five thousand, seven hundred thirty-two".