63743625625 has 15 divisors (see below), whose sum is σ = 79661922681. Its totient is φ = 50989851000.

The previous prime is 63743625613. The next prime is 63743625691. The reversal of 63743625625 is 52652634736.

The square root of 63743625625 is 252475.

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 4997500249 + 58746125376 = 70693^2 + 242376^2 .

It is not a de Polignac number, because 63743625625 - 2¹³ = 63743617433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 6306826 + ... + 6316924.

Almost surely, 2^63743625625 is an apocalyptic number.

63743625625 is the 252475-th square number.

63743625625 is the 126238-th centered octagonal number.

It is an amenable number.

63743625625 is a deficient number, since it is larger than the sum of its proper divisors (15918297056).

63743625625 is an frugal number, since it uses more digits than its factorization.

63743625625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20218 (or 10104 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 49.

Multiplying 63743625625 by its sum of digits (49), we get a square (3123437655625 = 1767325²).

The spelling of 63743625625 in words is "sixty-three billion, seven hundred forty-three million, six hundred twenty-five thousand, six hundred twenty-five".