22013253 has 24 divisors (see below), whose sum is σ = 32720376. Its totient is φ = 14256000.

The previous prime is 22013239. The next prime is 22013273. The reversal of 22013253 is 35231022.

It can be written as a sum of positive squares in 4 ways, for example, as 4524129 + 17489124 = 2127^2 + 4182^2 .

It is not a de Polignac number, because 22013253 - 2⁵ = 22013221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55251 + ... + 55647.

It is an arithmetic number, because the mean of its divisors is an integer number (1363349).

Almost surely, 2^22013253 is an apocalyptic number.

It is an amenable number.

22013253 is a deficient number, since it is larger than the sum of its proper divisors (10707123).

22013253 is a wasteful number, since it uses less digits than its factorization.

22013253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22013253 is about 4691.8283216674. The cubic root of 22013253 is about 280.2601875698.

Adding to 22013253 its reverse (35231022), we get a palindrome (57244275).

The spelling of 22013253 in words is "twenty-two million, thirteen thousand, two hundred fifty-three".