23252661 has 6 divisors (see below), whose sum is σ = 33587190. Its totient is φ = 15501768.

The previous prime is 23252657. The next prime is 23252683. The reversal of 23252661 is 16625232.

It can be written as a sum of positive squares in only one way, i.e., 11902500 + 11350161 = 3450^2 + 3369^2 .

It is not a de Polignac number, because 23252661 - 2² = 23252657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252611) 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, 1291806 + ... + 1291823.

It is an arithmetic number, because the mean of its divisors is an integer number (5597865).

Almost surely, 2^23252661 is an apocalyptic number.

It is an amenable number.

23252661 is a deficient number, since it is larger than the sum of its proper divisors (10334529).

23252661 is a wasteful number, since it uses less digits than its factorization.

23252661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583635 (or 2583632 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 23252661 is about 4822.1013054477. The cubic root of 23252661 is about 285.4242619275.

Adding to 23252661 its reverse (16625232), we get a palindrome (39877893).

The spelling of 23252661 in words is "twenty-three million, two hundred fifty-two thousand, six hundred sixty-one".