2173604625 has 64 divisors (see below), whose sum is σ = 4068879360. Its totient is φ = 1159110000.

The previous prime is 2173604623. The next prime is 2173604647. The reversal of 2173604625 is 5264063712.

2173604625 is a `hidden beast` number, since 21 + 7 + 3 + 6 + 0 + 4 + 625 = 666.

It is not a de Polignac number, because 2173604625 - 2¹ = 2173604623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2173604625.

It is not an unprimeable number, because it can be changed into a prime (2173604623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 269400 + ... + 277350.

It is an arithmetic number, because the mean of its divisors is an integer number (63576240).

Almost surely, 2^2173604625 is an apocalyptic number.

2173604625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2173604625 is a deficient number, since it is larger than the sum of its proper divisors (1895274735).

2173604625 is an frugal number, since it uses more digits than its factorization.

2173604625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7987 (or 7959 counting only the distinct ones).

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

The square root of 2173604625 is about 46621.9328749892. The cubic root of 2173604625 is about 1295.3690505149.

The spelling of 2173604625 in words is "two billion, one hundred seventy-three million, six hundred four thousand, six hundred twenty-five".