73663625 has 32 divisors (see below), whose sum is σ = 108725760. Its totient is φ = 48753600.

The previous prime is 73663621. The next prime is 73663637. The reversal of 73663625 is 52636637.

It is not a de Polignac number, because 73663625 - 2² = 73663621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73663621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23924 + ... + 26826.

It is an arithmetic number, because the mean of its divisors is an integer number (3397680).

Almost surely, 2^73663625 is an apocalyptic number.

It is an amenable number.

73663625 is a deficient number, since it is larger than the sum of its proper divisors (35062135).

73663625 is a wasteful number, since it uses less digits than its factorization.

73663625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954 (or 2944 counting only the distinct ones).

The product of its digits is 136080, while the sum is 38.

The square root of 73663625 is about 8582.7515984095. The cubic root of 73663625 is about 419.1965459946.

The spelling of 73663625 in words is "seventy-three million, six hundred sixty-three thousand, six hundred twenty-five".