63561125 has 8 divisors (see below), whose sum is σ = 79324440. Its totient is φ = 50848800.

The previous prime is 63561107. The next prime is 63561131. The reversal of 63561125 is 52116536.

It can be written as a sum of positive squares in 4 ways, for example, as 231361 + 63329764 = 481^2 + 7958^2 .

It is not a de Polignac number, because 63561125 - 2⁸ = 63560869 is a prime.

It is a super-2 number, since 2×63561125² = 8080033222531250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254120 + ... + 254369.

It is an arithmetic number, because the mean of its divisors is an integer number (9915555).

Almost surely, 2^63561125 is an apocalyptic number.

It is an amenable number.

63561125 is a deficient number, since it is larger than the sum of its proper divisors (15763315).

63561125 is an equidigital number, since it uses as much as digits as its factorization.

63561125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508504 (or 508494 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 63561125 is about 7972.5231263384. The cubic root of 63561125 is about 399.0835791187.

The spelling of 63561125 in words is "sixty-three million, five hundred sixty-one thousand, one hundred twenty-five".