63139225 has 6 divisors (see below), whose sum is σ = 78292670. Its totient is φ = 50511360.

The previous prime is 63139217. The next prime is 63139229. The reversal of 63139225 is 52293136.

It can be written as a sum of positive squares in 3 ways, for example, as 15031129 + 48108096 = 3877^2 + 6936^2 .

It is not a de Polignac number, because 63139225 - 2³ = 63139217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63139229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1262760 + ... + 1262809.

Almost surely, 2^63139225 is an apocalyptic number.

It is an amenable number.

63139225 is a deficient number, since it is larger than the sum of its proper divisors (15153445).

63139225 is a wasteful number, since it uses less digits than its factorization.

63139225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525579 (or 2525574 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 63139225 is about 7946.0194437215. The cubic root of 63139225 is about 398.1986184896.

The spelling of 63139225 in words is "sixty-three million, one hundred thirty-nine thousand, two hundred twenty-five".