23266549 has 2 divisors, whose sum is σ = 23266550. Its totient is φ = 23266548.

The previous prime is 23266541. The next prime is 23266571. The reversal of 23266549 is 94566232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20520900 + 2745649 = 4530^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 23266549 - 2³ = 23266541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23266541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11633274 + 11633275.

It is an arithmetic number, because the mean of its divisors is an integer number (11633275).

Almost surely, 2^23266549 is an apocalyptic number.

It is an amenable number.

23266549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23266549 is an equidigital number, since it uses as much as digits as its factorization.

23266549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 23266549 is about 4823.5411265998. The cubic root of 23266549 is about 285.4810752564.

The spelling of 23266549 in words is "twenty-three million, two hundred sixty-six thousand, five hundred forty-nine".