63315817025 has 24 divisors (see below), whose sum is σ = 83728078560. Its totient is φ = 47330069760.

The previous prime is 63315817013. The next prime is 63315817031. The reversal of 63315817025 is 52071851336.

It is not a de Polignac number, because 63315817025 - 2⁸ = 63315816769 is a prime.

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, 476819 + ... + 594968.

It is an arithmetic number, because the mean of its divisors is an integer number (3488669940).

Almost surely, 2^63315817025 is an apocalyptic number.

It is an amenable number.

63315817025 is a deficient number, since it is larger than the sum of its proper divisors (20412261535).

63315817025 is a wasteful number, since it uses less digits than its factorization.

63315817025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071953 (or 1071948 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 63315817025 in words is "sixty-three billion, three hundred fifteen million, eight hundred seventeen thousand, twenty-five".