23557901359 has 4 divisors (see below), whose sum is σ = 23561015616. Its totient is φ = 23554787104.

The previous prime is 23557901347. The next prime is 23557901413. The reversal of 23557901359 is 95310975532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23557901359 - 2³¹ = 21410417711 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23557901309) 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 in 3 ways as a sum of consecutive naturals, for example, 1545754 + ... + 1560919.

It is an arithmetic number, because the mean of its divisors is an integer number (5890253904).

Almost surely, 2^23557901359 is an apocalyptic number.

23557901359 is a deficient number, since it is larger than the sum of its proper divisors (3114257).

23557901359 is an equidigital number, since it uses as much as digits as its factorization.

23557901359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114256.

The product of its (nonzero) digits is 1275750, while the sum is 49.

The spelling of 23557901359 in words is "twenty-three billion, five hundred fifty-seven million, nine hundred one thousand, three hundred fifty-nine".