656232253 has 4 divisors (see below), whose sum is σ = 656359200. Its totient is φ = 656105308.

The previous prime is 656232217. The next prime is 656232263. The reversal of 656232253 is 352232656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656232253 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 (656232263) 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, 55375 + ... + 66172.

It is an arithmetic number, because the mean of its divisors is an integer number (164089800).

Almost surely, 2^656232253 is an apocalyptic number.

It is an amenable number.

656232253 is a deficient number, since it is larger than the sum of its proper divisors (126947).

656232253 is a wasteful number, since it uses less digits than its factorization.

656232253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126946.

The product of its digits is 64800, while the sum is 34.

The square root of 656232253 is about 25617.0305265852. The cubic root of 656232253 is about 868.9988276215.

It can be divided in two parts, 65623 and 2253, that added together give a palindrome (67876).

The spelling of 656232253 in words is "six hundred fifty-six million, two hundred thirty-two thousand, two hundred fifty-three".