63312655455625 has 45 divisors (see below), whose sum is σ = 81757896364881. Its totient is φ = 49011475230000.

The previous prime is 63312655455617. The next prime is 63312655455653. The reversal of 63312655455625 is 52655455621336.

The square root of 63312655455625 is 7956925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4963712187721 + 58348943267904 = 2227939^2 + 7638648^2 .

It is not a de Polignac number, because 63312655455625 - 2³ = 63312655455617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63312655455625.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 6166611742 + ... + 6166622008.

Almost surely, 2^{63312655455625} is an apocalyptic number.

63312655455625 is the 7956925-th square number.

63312655455625 is the 3978463-rd centered octagonal number.

It is an amenable number.

63312655455625 is a deficient number, since it is larger than the sum of its proper divisors (18445240909256).

63312655455625 is an frugal number, since it uses more digits than its factorization.

63312655455625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20616 (or 10303 counting only the distinct ones).

The product of its digits is 97200000, while the sum is 58.

The spelling of 63312655455625 in words is "sixty-three trillion, three hundred twelve billion, six hundred fifty-five million, four hundred fifty-five thousand, six hundred twenty-five".