565402013 has 16 divisors (see below), whose sum is σ = 633007872. Its totient is φ = 500544000.

The previous prime is 565402003. The next prime is 565402027. The reversal of 565402013 is 310204565.

It is not a de Polignac number, because 565402013 - 2¹⁶ = 565336477 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 (565402003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396620 + ... + 398042.

It is an arithmetic number, because the mean of its divisors is an integer number (39562992).

Almost surely, 2^565402013 is an apocalyptic number.

It is an amenable number.

565402013 is a deficient number, since it is larger than the sum of its proper divisors (67605859).

565402013 is a wasteful number, since it uses less digits than its factorization.

565402013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 565402013 is about 23778.1835513144. The cubic root of 565402013 is about 826.8989684000.

Adding to 565402013 its reverse (310204565), we get a palindrome (875606578).

The spelling of 565402013 in words is "five hundred sixty-five million, four hundred two thousand, thirteen".