656455523 has 4 divisors (see below), whose sum is σ = 656560080. Its totient is φ = 656350968.

The previous prime is 656455483. The next prime is 656455537. The reversal of 656455523 is 325554656.

656455523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 656455523 - 2²⁸ = 388020067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656455543) 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, 42215 + ... + 55632.

It is an arithmetic number, because the mean of its divisors is an integer number (164140020).

Almost surely, 2^656455523 is an apocalyptic number.

656455523 is a deficient number, since it is larger than the sum of its proper divisors (104557).

656455523 is an equidigital number, since it uses as much as digits as its factorization.

656455523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104556.

The product of its digits is 540000, while the sum is 41.

The square root of 656455523 is about 25621.3879990917. The cubic root of 656455523 is about 869.0973696481.

The spelling of 656455523 in words is "six hundred fifty-six million, four hundred fifty-five thousand, five hundred twenty-three".