22656425 has 12 divisors (see below), whose sum is σ = 30648336. Its totient is φ = 16477200.

The previous prime is 22656401. The next prime is 22656451. The reversal of 22656425 is 52465622.

It is not a de Polignac number, because 22656425 - 2¹⁰ = 22655401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22656391 and 22656400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40919 + ... + 41468.

It is an arithmetic number, because the mean of its divisors is an integer number (2554028).

Almost surely, 2^22656425 is an apocalyptic number.

22656425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22656425 is a deficient number, since it is larger than the sum of its proper divisors (7991911).

22656425 is a wasteful number, since it uses less digits than its factorization.

22656425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82408 (or 82403 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 22656425 is about 4759.8765740300. The cubic root of 22656425 is about 282.9635275368.

The spelling of 22656425 in words is "twenty-two million, six hundred fifty-six thousand, four hundred twenty-five".