23075551 has 2 divisors, whose sum is σ = 23075552. Its totient is φ = 23075550.

The previous prime is 23075539. The next prime is 23075567. The reversal of 23075551 is 15557032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23075551 - 2¹¹ = 23073503 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23075581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11537775 + 11537776.

It is an arithmetic number, because the mean of its divisors is an integer number (11537776).

Almost surely, 2^23075551 is an apocalyptic number.

23075551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23075551 is an equidigital number, since it uses as much as digits as its factorization.

23075551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 23075551 is about 4803.7018017358. The cubic root of 23075551 is about 284.6977446035.

The spelling of 23075551 in words is "twenty-three million, seventy-five thousand, five hundred fifty-one".