22520901 has 16 divisors (see below), whose sum is σ = 33213824. Its totient is φ = 13483584.

The previous prime is 22520899. The next prime is 22520921. The reversal of 22520901 is 10902522.

It is not a de Polignac number, because 22520901 - 2¹ = 22520899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520921) 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, 6361 + ... + 9246.

It is an arithmetic number, because the mean of its divisors is an integer number (2075864).

Almost surely, 2^22520901 is an apocalyptic number.

It is an amenable number.

22520901 is a deficient number, since it is larger than the sum of its proper divisors (10692923).

22520901 is a wasteful number, since it uses less digits than its factorization.

22520901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15660.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 22520901 is about 4745.6191376890. The cubic root of 22520901 is about 282.3981975839.

The spelling of 22520901 in words is "twenty-two million, five hundred twenty thousand, nine hundred one".