245523565 has 24 divisors (see below), whose sum is σ = 353797632. Its totient is φ = 162923040.

The previous prime is 245523521. The next prime is 245523589. The reversal of 245523565 is 565325542.

245523565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245523565 - 2⁷ = 245523437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8569 + ... + 23758.

It is an arithmetic number, because the mean of its divisors is an integer number (14741568).

Almost surely, 2^245523565 is an apocalyptic number.

It is an amenable number.

245523565 is a deficient number, since it is larger than the sum of its proper divisors (108274067).

245523565 is a wasteful number, since it uses less digits than its factorization.

245523565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32377 (or 32370 counting only the distinct ones).

The product of its digits is 180000, while the sum is 37.

The square root of 245523565 is about 15669.1915873155. The cubic root of 245523565 is about 626.1778875350.

The spelling of 245523565 in words is "two hundred forty-five million, five hundred twenty-three thousand, five hundred sixty-five".