22502453 has 4 divisors (see below), whose sum is σ = 22512288. Its totient is φ = 22492620.

The previous prime is 22502443. The next prime is 22502461. The reversal of 22502453 is 35420522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22502453 - 2⁴ = 22502437 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 (22502413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (5628072).

Almost surely, 2^22502453 is an apocalyptic number.

It is an amenable number.

22502453 is a deficient number, since it is larger than the sum of its proper divisors (9835).

22502453 is an equidigital number, since it uses as much as digits as its factorization.

22502453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9834.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22502453 is about 4743.6750521089. The cubic root of 22502453 is about 282.3210676754.

Adding to 22502453 its reverse (35420522), we get a palindrome (57922975).

The spelling of 22502453 in words is "twenty-two million, five hundred two thousand, four hundred fifty-three".