249588561 has 16 divisors (see below), whose sum is σ = 335256320. Its totient is φ = 165162240.

The previous prime is 249588523. The next prime is 249588583. The reversal of 249588561 is 165885942.

249588561 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 249588561 - 2⁹ = 249588049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 249588561.

It is not an unprimeable number, because it can be changed into a prime (249588511) 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, 351675 + ... + 352383.

It is an arithmetic number, because the mean of its divisors is an integer number (20953520).

Almost surely, 2^249588561 is an apocalyptic number.

It is an amenable number.

249588561 is a deficient number, since it is larger than the sum of its proper divisors (85667759).

249588561 is a wasteful number, since it uses less digits than its factorization.

249588561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416.

The product of its digits is 691200, while the sum is 48.

The square root of 249588561 is about 15798.3720996817. The cubic root of 249588561 is about 629.6147480853.

The spelling of 249588561 in words is "two hundred forty-nine million, five hundred eighty-eight thousand, five hundred sixty-one".