22875621 has 8 divisors (see below), whose sum is σ = 30741504. Its totient is φ = 15130080.

The previous prime is 22875599. The next prime is 22875641. The reversal of 22875621 is 12657822.

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

It is not a de Polignac number, because 22875621 - 2⁹ = 22875109 is a prime.

It is a super-2 number, since 2×22875621² = 1046588072271282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22875641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29640 + ... + 30401.

It is an arithmetic number, because the mean of its divisors is an integer number (3842688).

Almost surely, 2^22875621 is an apocalyptic number.

It is an amenable number.

22875621 is a deficient number, since it is larger than the sum of its proper divisors (7865883).

22875621 is a wasteful number, since it uses less digits than its factorization.

22875621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60171.

The product of its digits is 13440, while the sum is 33.

The square root of 22875621 is about 4782.8465373666. The cubic root of 22875621 is about 283.8731373150.

The spelling of 22875621 in words is "twenty-two million, eight hundred seventy-five thousand, six hundred twenty-one".