83172625 has 8 divisors (see below), whose sum is σ = 103799592. Its totient is φ = 66538000.

The previous prime is 83172601. The next prime is 83172643. The reversal of 83172625 is 52627138.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1577536 + 81595089 = 1256^2 + 9033^2 .

It is a de Polignac number, because none of the positive numbers 2^k-83172625 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332566 + ... + 332815.

It is an arithmetic number, because the mean of its divisors is an integer number (12974949).

Almost surely, 2^83172625 is an apocalyptic number.

It is an amenable number.

83172625 is a deficient number, since it is larger than the sum of its proper divisors (20626967).

83172625 is an equidigital number, since it uses as much as digits as its factorization.

83172625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665396 (or 665386 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 83172625 is about 9119.9026858843. The cubic root of 83172625 is about 436.5092683566.

The spelling of 83172625 in words is "eighty-three million, one hundred seventy-two thousand, six hundred twenty-five".