63604225 has 24 divisors (see below), whose sum is σ = 84336120. Its totient is φ = 47416320.

The previous prime is 63604217. The next prime is 63604231. The reversal of 63604225 is 52240636.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 178929 + 63425296 = 423^2 + 7964^2 .

It is not a de Polignac number, because 63604225 - 2³ = 63604217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63604193 and 63604202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45639 + ... + 47011.

It is an arithmetic number, because the mean of its divisors is an integer number (3514005).

Almost surely, 2^63604225 is an apocalyptic number.

It is an amenable number.

63604225 is a deficient number, since it is larger than the sum of its proper divisors (20731895).

63604225 is a wasteful number, since it uses less digits than its factorization.

63604225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 63604225 is about 7975.2257021353. The cubic root of 63604225 is about 399.1737632572.

It can be divided in two parts, 6360 and 4225, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 63604225 in words is "sixty-three million, six hundred four thousand, two hundred twenty-five".