63535725 has 96 divisors (see below), whose sum is σ = 130944000. Its totient is φ = 29937600.

The previous prime is 63535673. The next prime is 63535733. The reversal of 63535725 is 52753536.

It is not a de Polignac number, because 63535725 - 2⁷ = 63535597 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 63535725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 319176 + ... + 319374.

It is an arithmetic number, because the mean of its divisors is an integer number (1364000).

Almost surely, 2^63535725 is an apocalyptic number.

It is an amenable number.

63535725 is an abundant number, since it is smaller than the sum of its proper divisors (67408275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63535725 is a wasteful number, since it uses less digits than its factorization.

63535725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 261 counting only the distinct ones).

The product of its digits is 94500, while the sum is 36.

The square root of 63535725 is about 7970.9299959290. The cubic root of 63535725 is about 399.0304120637.

Subtracting from 63535725 its product of digits (94500), we obtain a square (63441225 = 7965²).

The spelling of 63535725 in words is "sixty-three million, five hundred thirty-five thousand, seven hundred twenty-five".