565725131 has 4 divisors (see below), whose sum is σ = 571217712. Its totient is φ = 560232552.

The previous prime is 565725109. The next prime is 565725179. The reversal of 565725131 is 131527565.

565725131 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 565725131 - 2⁶ = 565725067 is a prime.

It is a super-2 number, since 2×565725131² = 640089847689934322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 565725091 and 565725100.

It is not an unprimeable number, because it can be changed into a prime (565725101) 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, 2746136 + ... + 2746341.

It is an arithmetic number, because the mean of its divisors is an integer number (142804428).

Almost surely, 2^565725131 is an apocalyptic number.

565725131 is a deficient number, since it is larger than the sum of its proper divisors (5492581).

565725131 is a wasteful number, since it uses less digits than its factorization.

565725131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5492580.

The product of its digits is 31500, while the sum is 35.

The square root of 565725131 is about 23784.9770023013. The cubic root of 565725131 is about 827.0564581468.

The spelling of 565725131 in words is "five hundred sixty-five million, seven hundred twenty-five thousand, one hundred thirty-one".