23253491 has 4 divisors (see below), whose sum is σ = 23266800. Its totient is φ = 23240184.

The previous prime is 23253469. The next prime is 23253509. The reversal of 23253491 is 19435232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23253491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23253431) 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, 3551 + ... + 7688.

It is an arithmetic number, because the mean of its divisors is an integer number (5816700).

Almost surely, 2^23253491 is an apocalyptic number.

23253491 is a deficient number, since it is larger than the sum of its proper divisors (13309).

23253491 is a wasteful number, since it uses less digits than its factorization.

23253491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13308.

The product of its digits is 6480, while the sum is 29.

The square root of 23253491 is about 4822.1873667455. The cubic root of 23253491 is about 285.4276579448.

The spelling of 23253491 in words is "twenty-three million, two hundred fifty-three thousand, four hundred ninety-one".