63873525 has 12 divisors (see below), whose sum is σ = 105604352. Its totient is φ = 34065840.

The previous prime is 63873521. The next prime is 63873559. The reversal of 63873525 is 52537836.

It is not a de Polignac number, because 63873525 - 2² = 63873521 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63873521) 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, 425749 + ... + 425898.

Almost surely, 2^63873525 is an apocalyptic number.

It is an amenable number.

63873525 is a deficient number, since it is larger than the sum of its proper divisors (41730827).

63873525 is a wasteful number, since it uses less digits than its factorization.

63873525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851660 (or 851655 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 63873525 is about 7992.0914033812. The cubic root of 63873525 is about 399.7363366590.

The spelling of 63873525 in words is "sixty-three million, eight hundred seventy-three thousand, five hundred twenty-five".