23253881 has 6 divisors (see below), whose sum is σ = 27050490. Its totient is φ = 19931856.

The previous prime is 23253869. The next prime is 23253883. The reversal of 23253881 is 18835232.

It can be written as a sum of positive squares in only one way, i.e., 23193856 + 60025 = 4816^2 + 245^2 .

It is not a de Polignac number, because 23253881 - 2⁶ = 23253817 is a prime.

It is a super-2 number, since 2×23253881² = 1081485963124322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23253883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237236 + ... + 237333.

It is an arithmetic number, because the mean of its divisors is an integer number (4508415).

Almost surely, 2^23253881 is an apocalyptic number.

It is an amenable number.

23253881 is a deficient number, since it is larger than the sum of its proper divisors (3796609).

23253881 is an equidigital number, since it uses as much as digits as its factorization.

23253881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474583 (or 474576 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 23253881 is about 4822.2278046563. The cubic root of 23253881 is about 285.4292536359.

The spelling of 23253881 in words is "twenty-three million, two hundred fifty-three thousand, eight hundred eighty-one".