23205255235559 has 2 divisors, whose sum is σ = 23205255235560. Its totient is φ = 23205255235558.

The previous prime is 23205255235523. The next prime is 23205255235579. The reversal of 23205255235559 is 95553255250232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23205255235559 - 2⁸ = 23205255235303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23205255235559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23205255235579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11602627617779 + 11602627617780.

It is an arithmetic number, because the mean of its divisors is an integer number (11602627617780).

Almost surely, 2^{23205255235559} is an apocalyptic number.

23205255235559 is a deficient number, since it is larger than the sum of its proper divisors (1).

23205255235559 is an equidigital number, since it uses as much as digits as its factorization.

23205255235559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250000, while the sum is 53.

The spelling of 23205255235559 in words is "twenty-three trillion, two hundred five billion, two hundred fifty-five million, two hundred thirty-five thousand, five hundred fifty-nine".