23557099 has 2 divisors, whose sum is σ = 23557100. Its totient is φ = 23557098.

The previous prime is 23557081. The next prime is 23557111. The reversal of 23557099 is 99075532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23557099 - 2⁵ = 23557067 is a prime.

It is not a weakly prime, because it can be changed into another prime (23557399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11778549 + 11778550.

It is an arithmetic number, because the mean of its divisors is an integer number (11778550).

Almost surely, 2^23557099 is an apocalyptic number.

23557099 is a deficient number, since it is larger than the sum of its proper divisors (1).

23557099 is an equidigital number, since it uses as much as digits as its factorization.

23557099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 23557099 is about 4853.5655965486. The cubic root of 23557099 is about 286.6645142859.

The spelling of 23557099 in words is "twenty-three million, five hundred fifty-seven thousand, ninety-nine".