63527791525 has 48 divisors (see below), whose sum is σ = 91337725440. Its totient is φ = 43345022400.

The previous prime is 63527791513. The next prime is 63527791541. The reversal of 63527791525 is 52519772536.

It is not a de Polignac number, because 63527791525 - 2¹⁵ = 63527758757 is a prime.

It is a super-3 number, since 3×63527791525³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

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, 479154 + ... + 597196.

It is an arithmetic number, because the mean of its divisors is an integer number (1902869280).

Almost surely, 2^63527791525 is an apocalyptic number.

It is an amenable number.

63527791525 is a deficient number, since it is larger than the sum of its proper divisors (27809933915).

63527791525 is a wasteful number, since it uses less digits than its factorization.

63527791525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118186 (or 118181 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 52.

The spelling of 63527791525 in words is "sixty-three billion, five hundred twenty-seven million, seven hundred ninety-one thousand, five hundred twenty-five".