22678625 has 16 divisors (see below), whose sum is σ = 28436304. Its totient is φ = 18057600.

The previous prime is 22678619. The next prime is 22678627. The reversal of 22678625 is 52687622.

It can be written as a sum of positive squares in 8 ways, for example, as 2166784 + 20511841 = 1472^2 + 4529^2 .

It is not a de Polignac number, because 22678625 - 2¹⁰ = 22677601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22678627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49397 + ... + 49853.

It is an arithmetic number, because the mean of its divisors is an integer number (1777269).

Almost surely, 2^22678625 is an apocalyptic number.

22678625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22678625 is a deficient number, since it is larger than the sum of its proper divisors (5757679).

22678625 is an equidigital number, since it uses as much as digits as its factorization.

22678625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 859 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 22678625 is about 4762.2079962975. The cubic root of 22678625 is about 283.0559183954.

The spelling of 22678625 in words is "twenty-two million, six hundred seventy-eight thousand, six hundred twenty-five".