63216125 has 24 divisors (see below), whose sum is σ = 91783224. Its totient is φ = 43344000.

The previous prime is 63216071. The next prime is 63216151. The reversal of 63216125 is 52161236.

It can be written as a sum of positive squares in 4 ways, for example, as 2079364 + 61136761 = 1442^2 + 7819^2 .

It is a de Polignac number, because none of the positive numbers 2^k-63216125 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63216094 and 63216103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 965 + ... + 11285.

It is an arithmetic number, because the mean of its divisors is an integer number (3824301).

Almost surely, 2^63216125 is an apocalyptic number.

It is an amenable number.

63216125 is a deficient number, since it is larger than the sum of its proper divisors (28567099).

63216125 is a wasteful number, since it uses less digits than its factorization.

63216125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350 (or 10333 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 63216125 is about 7950.8568720610. The cubic root of 63216125 is about 398.3602140241.

The spelling of 63216125 in words is "sixty-three million, two hundred sixteen thousand, one hundred twenty-five".