63213625 has 8 divisors (see below), whose sum is σ = 78890760. Its totient is φ = 50570800.

The previous prime is 63213617. The next prime is 63213641. The reversal of 63213625 is 52631236.

It can be written as a sum of positive squares in 4 ways, for example, as 10156969 + 53056656 = 3187^2 + 7284^2 .

It is not a de Polignac number, because 63213625 - 2³ = 63213617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63213593 and 63213602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252730 + ... + 252979.

It is an arithmetic number, because the mean of its divisors is an integer number (9861345).

Almost surely, 2^63213625 is an apocalyptic number.

It is an amenable number.

63213625 is a deficient number, since it is larger than the sum of its proper divisors (15677135).

63213625 is an equidigital number, since it uses as much as digits as its factorization.

63213625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505724 (or 505714 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 63213625 is about 7950.6996547474. The cubic root of 63213625 is about 398.3549626547.

The spelling of 63213625 in words is "sixty-three million, two hundred thirteen thousand, six hundred twenty-five".