83180925 has 30 divisors (see below), whose sum is σ = 154083578. Its totient is φ = 44362080.

The previous prime is 83180899. The next prime is 83180941. The reversal of 83180925 is 52908138.

It can be written as a sum of positive squares in 3 ways, for example, as 20169081 + 63011844 = 4491^2 + 7938^2 .

It is not a de Polignac number, because 83180925 - 2⁵ = 83180893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83180925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 18514 + ... + 22563.

Almost surely, 2^83180925 is an apocalyptic number.

It is an amenable number.

83180925 is a deficient number, since it is larger than the sum of its proper divisors (70902653).

83180925 is a wasteful number, since it uses less digits than its factorization.

83180925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41099 (or 41085 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 83180925 is about 9120.3577232475. The cubic root of 83180925 is about 436.5237879834.

The spelling of 83180925 in words is "eighty-three million, one hundred eighty thousand, nine hundred twenty-five".