63516525 has 72 divisors (see below), whose sum is σ = 116644320. Its totient is φ = 30401280.

The previous prime is 63516521. The next prime is 63516527. The reversal of 63516525 is 52561536.

It is not a de Polignac number, because 63516525 - 2² = 63516521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63516521) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1198399 + ... + 1198451.

It is an arithmetic number, because the mean of its divisors is an integer number (1620060).

Almost surely, 2^63516525 is an apocalyptic number.

It is an amenable number.

63516525 is a deficient number, since it is larger than the sum of its proper divisors (53127795).

63516525 is a wasteful number, since it uses less digits than its factorization.

63516525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 109 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 63516525 is about 7969.7255285236. The cubic root of 63516525 is about 398.9902133893.

The spelling of 63516525 in words is "sixty-three million, five hundred sixteen thousand, five hundred twenty-five".