51495372 has 48 divisors (see below), whose sum is σ = 134401120. Its totient is φ = 17050176.

The previous prime is 51495359. The next prime is 51495373. The reversal of 51495372 is 27359415.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51495373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15438 + ... + 18474.

Almost surely, 2^51495372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51495372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67200560).

51495372 is an abundant number, since it is smaller than the sum of its proper divisors (82905748).

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

51495372 is a wasteful number, since it uses less digits than its factorization.

51495372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207 (or 3199 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 51495372 is about 7176.0275919202. The cubic root of 51495372 is about 372.0397980314.

The spelling of 51495372 in words is "fifty-one million, four hundred ninety-five thousand, three hundred seventy-two".