656544053 has 4 divisors (see below), whose sum is σ = 716229888. Its totient is φ = 596858220.

The previous prime is 656544043. The next prime is 656544059. The reversal of 656544053 is 350445656.

It is a happy number.

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 656544053 - 2⁶ = 656543989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 656543998 and 656544016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656544059) 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, 29842901 + ... + 29842922.

It is an arithmetic number, because the mean of its divisors is an integer number (179057472).

Almost surely, 2^656544053 is an apocalyptic number.

It is an amenable number.

656544053 is a deficient number, since it is larger than the sum of its proper divisors (59685835).

656544053 is a wasteful number, since it uses less digits than its factorization.

656544053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59685834.

The product of its (nonzero) digits is 216000, while the sum is 38.

The square root of 656544053 is about 25623.1155990055. The cubic root of 656544053 is about 869.1364368958.

The spelling of 656544053 in words is "six hundred fifty-six million, five hundred forty-four thousand, fifty-three".