2572655817 has 4 divisors (see below), whose sum is σ = 3430207760. Its totient is φ = 1715103876.

The previous prime is 2572655797. The next prime is 2572655837. The reversal of 2572655817 is 7185562752.

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 an interprime number because it is at equal distance from previous prime (2572655797) and next prime (2572655837).

It is not a de Polignac number, because 2572655817 - 2²⁸ = 2304220361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2572655837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428775967 + ... + 428775972.

It is an arithmetic number, because the mean of its divisors is an integer number (857551940).

Almost surely, 2^2572655817 is an apocalyptic number.

It is an amenable number.

2572655817 is a deficient number, since it is larger than the sum of its proper divisors (857551943).

2572655817 is an equidigital number, since it uses as much as digits as its factorization.

2572655817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857551942.

The product of its digits is 1176000, while the sum is 48.

The square root of 2572655817 is about 50721.3546447648. The cubic root of 2572655817 is about 1370.2313383826.

The spelling of 2572655817 in words is "two billion, five hundred seventy-two million, six hundred fifty-five thousand, eight hundred seventeen".