23265521 has 2 divisors, whose sum is σ = 23265522. Its totient is φ = 23265520.

The previous prime is 23265499. The next prime is 23265533. The reversal of 23265521 is 12556232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14145121 + 9120400 = 3761^2 + 3020^2 .

It is a cyclic number.

It is not a de Polignac number, because 23265521 - 2¹⁴ = 23249137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23265721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11632760 + 11632761.

It is an arithmetic number, because the mean of its divisors is an integer number (11632761).

Almost surely, 2^23265521 is an apocalyptic number.

It is an amenable number.

23265521 is a deficient number, since it is larger than the sum of its proper divisors (1).

23265521 is an equidigital number, since it uses as much as digits as its factorization.

23265521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 23265521 is about 4823.4345647059. The cubic root of 23265521 is about 285.4768706668.

The spelling of 23265521 in words is "twenty-three million, two hundred sixty-five thousand, five hundred twenty-one".