23553608653 has 4 divisors (see below), whose sum is σ = 23576953180. Its totient is φ = 23530264128.

The previous prime is 23553608651. The next prime is 23553608669. The reversal of 23553608653 is 35680635532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16544905129 + 7008703524 = 128627^2 + 83718^2 .

It is a cyclic number.

It is not a de Polignac number, because 23553608653 - 2¹ = 23553608651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23553608651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11670750 + ... + 11672767.

It is an arithmetic number, because the mean of its divisors is an integer number (5894238295).

Almost surely, 2^23553608653 is an apocalyptic number.

It is an amenable number.

23553608653 is a deficient number, since it is larger than the sum of its proper divisors (23344527).

23553608653 is a wasteful number, since it uses less digits than its factorization.

23553608653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23344526.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 23553608653 in words is "twenty-three billion, five hundred fifty-three million, six hundred eight thousand, six hundred fifty-three".