23262521 has 4 divisors (see below), whose sum is σ = 23313444. Its totient is φ = 23211600.

The previous prime is 23262497. The next prime is 23262523. The reversal of 23262521 is 12526232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13402921 + 9859600 = 3661^2 + 3140^2 .

It is a cyclic number.

It is not a de Polignac number, because 23262521 - 2¹⁸ = 23000377 is a prime.

It is a super-2 number, since 2×23262521² = 1082289766550882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23262523) 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, 24770 + ... + 25691.

It is an arithmetic number, because the mean of its divisors is an integer number (5828361).

Almost surely, 2^23262521 is an apocalyptic number.

It is an amenable number.

23262521 is a deficient number, since it is larger than the sum of its proper divisors (50923).

23262521 is an equidigital number, since it uses as much as digits as its factorization.

23262521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50922.

The product of its digits is 1440, while the sum is 23.

The square root of 23262521 is about 4823.1235729556. The cubic root of 23262521 is about 285.4645997556.

Adding to 23262521 its reverse (12526232), we get a palindrome (35788753).

The spelling of 23262521 in words is "twenty-three million, two hundred sixty-two thousand, five hundred twenty-one".