83215625 has 24 divisors (see below), whose sum is σ = 107493120. Its totient is φ = 64350000.

The previous prime is 83215619. The next prime is 83215637. The reversal of 83215625 is 52651238.

It is a de Polignac number, because none of the positive numbers 2^k-83215625 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83215591 and 83215600.

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 23 ways as a sum of consecutive naturals, for example, 96446 + ... + 97304.

It is an arithmetic number, because the mean of its divisors is an integer number (4478880).

Almost surely, 2^83215625 is an apocalyptic number.

It is an amenable number.

83215625 is a deficient number, since it is larger than the sum of its proper divisors (24277495).

83215625 is an frugal number, since it uses more digits than its factorization.

83215625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 895 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 83215625 is about 9122.2598625560. The cubic root of 83215625 is about 436.5844800616.

The spelling of 83215625 in words is "eighty-three million, two hundred fifteen thousand, six hundred twenty-five".