264425563 has 4 divisors (see below), whose sum is σ = 264502480. Its totient is φ = 264348648.

The previous prime is 264425543. The next prime is 264425627. The reversal of 264425563 is 365524462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264425563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264425543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33048 + ... + 40261.

It is an arithmetic number, because the mean of its divisors is an integer number (66125620).

Almost surely, 2^264425563 is an apocalyptic number.

264425563 is a deficient number, since it is larger than the sum of its proper divisors (76917).

264425563 is an equidigital number, since it uses as much as digits as its factorization.

264425563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76916.

The product of its digits is 172800, while the sum is 37.

The square root of 264425563 is about 16261.1673320214. The cubic root of 264425563 is about 641.8513799215.

The spelling of 264425563 in words is "two hundred sixty-four million, four hundred twenty-five thousand, five hundred sixty-three".