51465132 has 30 divisors (see below), whose sum is σ = 134540868. Its totient is φ = 17154936.

The previous prime is 51465121. The next prime is 51465133. The reversal of 51465132 is 23156415.

51465132 is a `hidden beast` number, since 5 + 1 + 4 + 651 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51465096 and 51465105.

It is not an unprimeable number, because it can be changed into a prime (51465133) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79098 + ... + 79745.

Almost surely, 2^51465132 is an apocalyptic number.

It is an amenable number.

51465132 is an abundant number, since it is smaller than the sum of its proper divisors (83075736).

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

51465132 is a wasteful number, since it uses less digits than its factorization.

51465132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158859 (or 158848 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 51465132 is about 7173.9202671900. The cubic root of 51465132 is about 371.9669585638.

The spelling of 51465132 in words is "fifty-one million, four hundred sixty-five thousand, one hundred thirty-two".