22739825 has 12 divisors (see below), whose sum is σ = 28474368. Its totient is φ = 18013200.

The previous prime is 22739803. The next prime is 22739891. The reversal of 22739825 is 52893722.

It is not a de Polignac number, because 22739825 - 2⁸ = 22739569 is a prime.

It is a Duffinian number.

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, 1841 + ... + 6990.

It is an arithmetic number, because the mean of its divisors is an integer number (2372864).

Almost surely, 2^22739825 is an apocalyptic number.

22739825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22739825 is a deficient number, since it is larger than the sum of its proper divisors (5734543).

22739825 is a wasteful number, since it uses less digits than its factorization.

22739825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8944 (or 8939 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 22739825 is about 4768.6292579734. The cubic root of 22739825 is about 283.3103057025.

The spelling of 22739825 in words is "twenty-two million, seven hundred thirty-nine thousand, eight hundred twenty-five".