63420625 has 40 divisors (see below), whose sum is σ = 86372352. Its totient is φ = 46368000.

The previous prime is 63420611. The next prime is 63420631. The reversal of 63420625 is 52602436.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-63420625 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63420593 and 63420602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 499312 + ... + 499438.

Almost surely, 2^63420625 is an apocalyptic number.

It is an amenable number.

63420625 is a deficient number, since it is larger than the sum of its proper divisors (22951727).

63420625 is a wasteful number, since it uses less digits than its factorization.

63420625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 196 counting only the distinct ones).

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

The square root of 63420625 is about 7963.7067374433. The cubic root of 63420625 is about 398.7893080093.

The spelling of 63420625 in words is "sixty-three million, four hundred twenty thousand, six hundred twenty-five".