23583551 has 2 divisors, whose sum is σ = 23583552. Its totient is φ = 23583550.

The previous prime is 23583509. The next prime is 23583557. The reversal of 23583551 is 15538532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23583551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23583557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11791775 + 11791776.

It is an arithmetic number, because the mean of its divisors is an integer number (11791776).

Almost surely, 2^23583551 is an apocalyptic number.

23583551 is a deficient number, since it is larger than the sum of its proper divisors (1).

23583551 is an equidigital number, since it uses as much as digits as its factorization.

23583551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 23583551 is about 4856.2898389614. The cubic root of 23583551 is about 286.7717715967.

The spelling of 23583551 in words is "twenty-three million, five hundred eighty-three thousand, five hundred fifty-one".