63215125 has 16 divisors (see below), whose sum is σ = 79215552. Its totient is φ = 50365200.

The previous prime is 63215123. The next prime is 63215171. The reversal of 63215125 is 52151236.

It is not a de Polignac number, because 63215125 - 2¹ = 63215123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63215125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63215123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34482 + ... + 36268.

It is an arithmetic number, because the mean of its divisors is an integer number (4950972).

Almost surely, 2^63215125 is an apocalyptic number.

It is an amenable number.

63215125 is a deficient number, since it is larger than the sum of its proper divisors (16000427).

63215125 is a wasteful number, since it uses less digits than its factorization.

63215125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085 (or 2075 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 63215125 is about 7950.7939855086. The cubic root of 63215125 is about 398.3581134930.

The spelling of 63215125 in words is "sixty-three million, two hundred fifteen thousand, one hundred twenty-five".