83581225 has 24 divisors (see below), whose sum is σ = 127561280. Its totient is φ = 52902720.

The previous prime is 83581217. The next prime is 83581279. The reversal of 83581225 is 52218538.

It is not a de Polignac number, because 83581225 - 2³ = 83581217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16095 + ... + 20644.

Almost surely, 2^83581225 is an apocalyptic number.

It is an amenable number.

83581225 is a deficient number, since it is larger than the sum of its proper divisors (43980055).

83581225 is a wasteful number, since it uses less digits than its factorization.

83581225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36769 (or 36764 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 83581225 is about 9142.2767951971. The cubic root of 83581225 is about 437.2229102571. Note that the first 3 decimals are identical.

The spelling of 83581225 in words is "eighty-three million, five hundred eighty-one thousand, two hundred twenty-five".