2564571453 has 4 divisors (see below), whose sum is σ = 3419428608. Its totient is φ = 1709714300.

The previous prime is 2564571439. The next prime is 2564571463. The reversal of 2564571453 is 3541754652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2564571453 - 2¹⁷ = 2564440381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564571463) 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, 427428573 + ... + 427428578.

It is an arithmetic number, because the mean of its divisors is an integer number (854857152).

Almost surely, 2^2564571453 is an apocalyptic number.

It is an amenable number.

2564571453 is a deficient number, since it is larger than the sum of its proper divisors (854857155).

2564571453 is an equidigital number, since it uses as much as digits as its factorization.

2564571453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854857154.

The product of its digits is 504000, while the sum is 42.

The square root of 2564571453 is about 50641.5980494297. The cubic root of 2564571453 is about 1368.7945517410.

The spelling of 2564571453 in words is "two billion, five hundred sixty-four million, five hundred seventy-one thousand, four hundred fifty-three".