63673625 has 8 divisors (see below), whose sum is σ = 79464840. Its totient is φ = 50938800.

The previous prime is 63673607. The next prime is 63673657. The reversal of 63673625 is 52637636.

It can be written as a sum of positive squares in 4 ways, for example, as 14280841 + 49392784 = 3779^2 + 7028^2 .

It is a de Polignac number, because none of the positive numbers 2^k-63673625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254570 + ... + 254819.

It is an arithmetic number, because the mean of its divisors is an integer number (9933105).

Almost surely, 2^63673625 is an apocalyptic number.

It is an amenable number.

63673625 is a deficient number, since it is larger than the sum of its proper divisors (15791215).

63673625 is an equidigital number, since it uses as much as digits as its factorization.

63673625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509404 (or 509394 counting only the distinct ones).

The product of its digits is 136080, while the sum is 38.

The square root of 63673625 is about 7979.5754899619. The cubic root of 63673625 is about 399.3188929747.

The spelling of 63673625 in words is "sixty-three million, six hundred seventy-three thousand, six hundred twenty-five".