2172200625 has 240 divisors, whose sum is σ = 4871940480. Its totient is φ = 952560000.

The previous prime is 2172200609. The next prime is 2172200633. The reversal of 2172200625 is 5260022712.

2172200625 is a `hidden beast` number, since 2 + 17 + 2 + 20 + 0 + 625 = 666.

It is not a de Polignac number, because 2172200625 - 2⁴ = 2172200609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 30594340 + ... + 30594410.

It is an arithmetic number, because the mean of its divisors is an integer number (20299752).

Almost surely, 2^2172200625 is an apocalyptic number.

2172200625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2172200625 is an abundant number, since it is smaller than the sum of its proper divisors (2699739855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172200625 is an equidigital number, since it uses as much as digits as its factorization.

2172200625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2172200625 is about 46606.8731519290. The cubic root of 2172200625 is about 1295.0900838235.

The spelling of 2172200625 in words is "two billion, one hundred seventy-two million, two hundred thousand, six hundred twenty-five".