22809625 has 16 divisors (see below), whose sum is σ = 28619136. Its totient is φ = 18150000.

The previous prime is 22809623. The next prime is 22809637. The reversal of 22809625 is 52690822.

It is not a de Polignac number, because 22809625 - 2¹ = 22809623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22809623) 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, 31012 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (1788696).

Almost surely, 2^22809625 is an apocalyptic number.

22809625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22809625 is a deficient number, since it is larger than the sum of its proper divisors (5809511).

22809625 is an equidigital number, since it uses as much as digits as its factorization.

22809625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 22809625 is about 4775.9423153970. The cubic root of 22809625 is about 283.5998837234.

The spelling of 22809625 in words is "twenty-two million, eight hundred nine thousand, six hundred twenty-five".