538207565 has 16 divisors (see below), whose sum is σ = 755280768. Its totient is φ = 360472896.

The previous prime is 538207559. The next prime is 538207577. The reversal of 538207565 is 565702835.

It is not a de Polignac number, because 538207565 - 2²⁶ = 471098701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177302 + ... + 180311.

It is an arithmetic number, because the mean of its divisors is an integer number (47205048).

Almost surely, 2^538207565 is an apocalyptic number.

It is an amenable number.

538207565 is a deficient number, since it is larger than the sum of its proper divisors (217073203).

538207565 is a wasteful number, since it uses less digits than its factorization.

538207565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357668.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 538207565 is about 23199.3009592962. The cubic root of 538207565 is about 813.4232830547.

The spelling of 538207565 in words is "five hundred thirty-eight million, two hundred seven thousand, five hundred sixty-five".