2172322625 has 32 divisors (see below), whose sum is σ = 2970864000. Its totient is φ = 1572744000.

The previous prime is 2172322601. The next prime is 2172322627. The reversal of 2172322625 is 5262232712.

It is not a de Polignac number, because 2172322625 - 2¹² = 2172318529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2172322591 and 2172322600.

It is not an unprimeable number, because it can be changed into a prime (2172322627) 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, 311426 + ... + 318324.

It is an arithmetic number, because the mean of its divisors is an integer number (92839500).

Almost surely, 2^2172322625 is an apocalyptic number.

2172322625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2172322625 is a deficient number, since it is larger than the sum of its proper divisors (798541375).

2172322625 is a wasteful number, since it uses less digits than its factorization.

2172322625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7154 (or 7144 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 2172322625 is about 46608.1819533867. The cubic root of 2172322625 is about 1295.1143292869.

The spelling of 2172322625 in words is "two billion, one hundred seventy-two million, three hundred twenty-two thousand, six hundred twenty-five".