63328725 has 36 divisors (see below), whose sum is σ = 114250500. Its totient is φ = 33530880.

The previous prime is 63328711. The next prime is 63328739. The reversal of 63328725 is 52782336.

It is an interprime number because it is at equal distance from previous prime (63328711) and next prime (63328739).

It can be written as a sum of positive squares in 6 ways, for example, as 8242641 + 55086084 = 2871^2 + 7422^2 .

It is not a de Polignac number, because 63328725 - 2⁴ = 63328709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63328725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32581 + ... + 34469.

It is an arithmetic number, because the mean of its divisors is an integer number (3173625).

Almost surely, 2^63328725 is an apocalyptic number.

It is an amenable number.

63328725 is a deficient number, since it is larger than the sum of its proper divisors (50921775).

63328725 is a wasteful number, since it uses less digits than its factorization.

With its successor (63328726) it forms an eRAP, since the sums of their prime factors are consecutive (2054 and 2055).

63328725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054 (or 2046 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 63328725 is about 7957.9347195111. The cubic root of 63328725 is about 398.5965922922.

The spelling of 63328725 in words is "sixty-three million, three hundred twenty-eight thousand, seven hundred twenty-five".