653221625 has 32 divisors (see below), whose sum is σ = 940522752. Its totient is φ = 443673600.

The previous prime is 653221619. The next prime is 653221649. The reversal of 653221625 is 526122356.

It is not a de Polignac number, because 653221625 - 2¹⁶ = 653156089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 653221591 and 653221600.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90137 + ... + 97113.

It is an arithmetic number, because the mean of its divisors is an integer number (29391336).

Almost surely, 2^653221625 is an apocalyptic number.

It is an amenable number.

653221625 is a deficient number, since it is larger than the sum of its proper divisors (287301127).

653221625 is a wasteful number, since it uses less digits than its factorization.

653221625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106 (or 7096 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 653221625 is about 25558.2007387062. The cubic root of 653221625 is about 867.6678743957.

The spelling of 653221625 in words is "six hundred fifty-three million, two hundred twenty-one thousand, six hundred twenty-five".