23253457 has 4 divisors (see below), whose sum is σ = 23279680. Its totient is φ = 23227236.

The previous prime is 23253431. The next prime is 23253463. The reversal of 23253457 is 75435232.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23253457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23254457) 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, 11733 + ... + 13570.

It is an arithmetic number, because the mean of its divisors is an integer number (5819920).

Almost surely, 2^23253457 is an apocalyptic number.

It is an amenable number.

23253457 is a deficient number, since it is larger than the sum of its proper divisors (26223).

23253457 is an equidigital number, since it uses as much as digits as its factorization.

23253457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26222.

The product of its digits is 25200, while the sum is 31.

The square root of 23253457 is about 4822.1838413731. The cubic root of 23253457 is about 285.4275188325.

Adding to 23253457 its reverse (75435232), we get a palindrome (98688689).

The spelling of 23253457 in words is "twenty-three million, two hundred fifty-three thousand, four hundred fifty-seven".