63375625 has 20 divisors (see below), whose sum is σ = 81773824. Its totient is φ = 49050000.

The previous prime is 63375623. The next prime is 63375673. The reversal of 63375625 is 52657336.

It is a happy number.

It is not a de Polignac number, because 63375625 - 2¹ = 63375623 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63375623) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 17740 + ... + 21010.

Almost surely, 2^63375625 is an apocalyptic number.

It is an amenable number.

63375625 is a deficient number, since it is larger than the sum of its proper divisors (18398199).

63375625 is an equidigital number, since it uses as much as digits as its factorization.

63375625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322 (or 3307 counting only the distinct ones).

The product of its digits is 113400, while the sum is 37.

The square root of 63375625 is about 7960.8809185919. The cubic root of 63375625 is about 398.6949655935.

It can be divided in two parts, 63375 and 625, that added together give a cube (64000 = 40³).

The spelling of 63375625 in words is "sixty-three million, three hundred seventy-five thousand, six hundred twenty-five".