22825865 has 8 divisors (see below), whose sum is σ = 27738240. Its totient is φ = 18029232.

The previous prime is 22825843. The next prime is 22825909. The reversal of 22825865 is 56852822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22825865 - 2⁸ = 22825609 is a prime.

It is a super-2 number, since 2×22825865² = 1042040225996450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28499 + ... + 29288.

It is an arithmetic number, because the mean of its divisors is an integer number (3467280).

Almost surely, 2^22825865 is an apocalyptic number.

It is an amenable number.

22825865 is a deficient number, since it is larger than the sum of its proper divisors (4912375).

22825865 is an equidigital number, since it uses as much as digits as its factorization.

22825865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57871.

The product of its digits is 76800, while the sum is 38.

The square root of 22825865 is about 4777.6422009188. The cubic root of 22825865 is about 283.6671735846.

The spelling of 22825865 in words is "twenty-two million, eight hundred twenty-five thousand, eight hundred sixty-five".