264983561 has 8 divisors (see below), whose sum is σ = 266716800. Its totient is φ = 263256400.

The previous prime is 264983513. The next prime is 264983569. The reversal of 264983561 is 165389462.

264983561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264983561 - 2¹⁰ = 264982537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264983569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111536 + ... + 113886.

It is an arithmetic number, because the mean of its divisors is an integer number (33339600).

Almost surely, 2^264983561 is an apocalyptic number.

It is an amenable number.

264983561 is a deficient number, since it is larger than the sum of its proper divisors (1733239).

264983561 is a wasteful number, since it uses less digits than its factorization.

264983561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039.

The product of its digits is 311040, while the sum is 44.

The square root of 264983561 is about 16278.3156683976. The cubic root of 264983561 is about 642.3025467830.

The spelling of 264983561 in words is "two hundred sixty-four million, nine hundred eighty-three thousand, five hundred sixty-one".