63539513925 has 12 divisors (see below), whose sum is σ = 105051996480. Its totient is φ = 33887740720.

The previous prime is 63539513923. The next prime is 63539513951. The reversal of 63539513925 is 52931593536.

It is not a de Polignac number, because 63539513925 - 2¹ = 63539513923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63539513923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423596685 + ... + 423596834.

It is an arithmetic number, because the mean of its divisors is an integer number (8754333040).

Almost surely, 2^63539513925 is an apocalyptic number.

It is an amenable number.

63539513925 is a deficient number, since it is larger than the sum of its proper divisors (41512482555).

63539513925 is a wasteful number, since it uses less digits than its factorization.

63539513925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847193532 (or 847193527 counting only the distinct ones).

The product of its digits is 3280500, while the sum is 51.

The spelling of 63539513925 in words is "sixty-three billion, five hundred thirty-nine million, five hundred thirteen thousand, nine hundred twenty-five".