51887272 has 16 divisors (see below), whose sum is σ = 97671060. Its totient is φ = 25841664.

The previous prime is 51887203. The next prime is 51887299. The reversal of 51887272 is 27278815.

It can be written as a sum of positive squares in 2 ways, for example, as 41036836 + 10850436 = 6406^2 + 3294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10563 + ... + 14674.

Almost surely, 2^51887272 is an apocalyptic number.

It is an amenable number.

51887272 is a deficient number, since it is larger than the sum of its proper divisors (45783788).

51887272 is a wasteful number, since it uses less digits than its factorization.

51887272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25500 (or 25496 counting only the distinct ones).

The product of its digits is 62720, while the sum is 40.

The square root of 51887272 is about 7203.2820297417. The cubic root of 51887272 is about 372.9812035465.

The spelling of 51887272 in words is "fifty-one million, eight hundred eighty-seven thousand, two hundred seventy-two".