23256335653 has 4 divisors (see below), whose sum is σ = 23258043340. Its totient is φ = 23254627968.

The previous prime is 23256335623. The next prime is 23256335657. The reversal of 23256335653 is 35653365232.

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 12569324769 + 10687010884 = 112113^2 + 103378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23256335653 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 (23256335657) 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, 833250 + ... + 860707.

It is an arithmetic number, because the mean of its divisors is an integer number (5814510835).

Almost surely, 2^23256335653 is an apocalyptic number.

It is an amenable number.

23256335653 is a deficient number, since it is larger than the sum of its proper divisors (1707687).

23256335653 is a wasteful number, since it uses less digits than its factorization.

23256335653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707686.

The product of its digits is 1458000, while the sum is 43.

The spelling of 23256335653 in words is "twenty-three billion, two hundred fifty-six million, three hundred thirty-five thousand, six hundred fifty-three".