2564352253 has 4 divisors (see below), whose sum is σ = 2565118588. Its totient is φ = 2563585920.

The previous prime is 2564352191. The next prime is 2564352277. The reversal of 2564352253 is 3522534652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1315295289 + 1249056964 = 36267^2 + 35342^2 .

It is a cyclic number.

It is not a de Polignac number, because 2564352253 - 2¹⁷ = 2564221181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564352353) 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, 378126 + ... + 384847.

It is an arithmetic number, because the mean of its divisors is an integer number (641279647).

Almost surely, 2^2564352253 is an apocalyptic number.

It is an amenable number.

2564352253 is a deficient number, since it is larger than the sum of its proper divisors (766335).

2564352253 is an equidigital number, since it uses as much as digits as its factorization.

2564352253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766334.

The product of its digits is 216000, while the sum is 37.

The square root of 2564352253 is about 50639.4337744805. The cubic root of 2564352253 is about 1368.7555525918.

The spelling of 2564352253 in words is "two billion, five hundred sixty-four million, three hundred fifty-two thousand, two hundred fifty-three".