63915659025 has 48 divisors (see below), whose sum is σ = 109500610560. Its totient is φ = 32874004800.

The previous prime is 63915658993. The next prime is 63915659053. The reversal of 63915659025 is 52095651936.

It is not a de Polignac number, because 63915659025 - 2⁵ = 63915658993 is a prime.

It is a super-2 number, since 2×63915659025² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129340 + ... + 380210.

It is an arithmetic number, because the mean of its divisors is an integer number (2281262720).

Almost surely, 2^63915659025 is an apocalyptic number.

It is an amenable number.

63915659025 is a deficient number, since it is larger than the sum of its proper divisors (45584951535).

63915659025 is a wasteful number, since it uses less digits than its factorization.

63915659025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251006 (or 251001 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 51.

The spelling of 63915659025 in words is "sixty-three billion, nine hundred fifteen million, six hundred fifty-nine thousand, twenty-five".