51087300625 has 15 divisors (see below), whose sum is σ = 63845752663. Its totient is φ = 40865320000.

The previous prime is 51087300619. The next prime is 51087300629. The reversal of 51087300625 is 52600378015.

The square root of 51087300625 is 226025.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 6610177809 + 44477122816 = 81303^2 + 210896^2 .

It is not a de Polignac number, because 51087300625 - 2²⁷ = 50953082897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51087300629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5646105 + ... + 5655145.

Almost surely, 2^51087300625 is an apocalyptic number.

51087300625 is the 226025-th square number.

51087300625 is the 113013-rd centered octagonal number.

It is an amenable number.

51087300625 is a deficient number, since it is larger than the sum of its proper divisors (12758452038).

51087300625 is an frugal number, since it uses more digits than its factorization.

51087300625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18102 (or 9046 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 51087300625 in words is "fifty-one billion, eighty-seven million, three hundred thousand, six hundred twenty-five".