5656235645 has 4 divisors (see below), whose sum is σ = 6787482780. Its totient is φ = 4524988512.

The previous prime is 5656235639. The next prime is 5656235707. The reversal of 5656235645 is 5465326565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5465326565 = 5 ⋅1093065313.

It can be written as a sum of positive squares in 2 ways, for example, as 697540921 + 4958694724 = 26411^2 + 70418^2 .

It is a cyclic number.

It is not a de Polignac number, because 5656235645 - 2⁶ = 5656235581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5656235645.

It is a congruent number.

It is an unprimeable number.

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, 565623560 + ... + 565623569.

It is an arithmetic number, because the mean of its divisors is an integer number (1696870695).

Almost surely, 2^5656235645 is an apocalyptic number.

It is an amenable number.

5656235645 is a deficient number, since it is larger than the sum of its proper divisors (1131247135).

5656235645 is a wasteful number, since it uses less digits than its factorization.

5656235645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131247134.

The product of its digits is 3240000, while the sum is 47.

The square root of 5656235645 is about 75207.9493471269. The cubic root of 5656235645 is about 1781.7324845112.

The spelling of 5656235645 in words is "five billion, six hundred fifty-six million, two hundred thirty-five thousand, six hundred forty-five".