23516504653 has 4 divisors (see below), whose sum is σ = 23528425788. Its totient is φ = 23504583520.

The previous prime is 23516504633. The next prime is 23516504657. The reversal of 23516504653 is 35640561532.

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 1619016169 + 21897488484 = 40237^2 + 147978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23516504653 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 (23516504657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5957608 + ... + 5961553.

It is an arithmetic number, because the mean of its divisors is an integer number (5882106447).

Almost surely, 2^23516504653 is an apocalyptic number.

It is an amenable number.

23516504653 is a deficient number, since it is larger than the sum of its proper divisors (11921135).

23516504653 is a wasteful number, since it uses less digits than its factorization.

23516504653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921134.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 23516504653 in words is "twenty-three billion, five hundred sixteen million, five hundred four thousand, six hundred fifty-three".