656089573 has 4 divisors (see below), whose sum is σ = 656306560. Its totient is φ = 655872588.

The previous prime is 656089547. The next prime is 656089601. The reversal of 656089573 is 375980656.

656089573 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 656089573 - 2⁵ = 656089541 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 (656089523) 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, 103893 + ... + 110026.

It is an arithmetic number, because the mean of its divisors is an integer number (164076640).

Almost surely, 2^656089573 is an apocalyptic number.

It is an amenable number.

656089573 is a deficient number, since it is larger than the sum of its proper divisors (216987).

656089573 is a wasteful number, since it uses less digits than its factorization.

656089573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216986.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 656089573 is about 25614.2455090912. The cubic root of 656089573 is about 868.9358429392.

The spelling of 656089573 in words is "six hundred fifty-six million, eighty-nine thousand, five hundred seventy-three".