2569972589 has 4 divisors (see below), whose sum is σ = 2585739456. Its totient is φ = 2554205724.

The previous prime is 2569972579. The next prime is 2569972687. The reversal of 2569972589 is 9852799652.

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 2569972589 - 2⁸ = 2569972333 is a prime.

It is a super-2 number, since 2×2569972589² = 13209518216422725842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2569972579) 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, 7883189 + ... + 7883514.

It is an arithmetic number, because the mean of its divisors is an integer number (646434864).

Almost surely, 2^2569972589 is an apocalyptic number.

It is an amenable number.

2569972589 is a deficient number, since it is larger than the sum of its proper divisors (15766867).

2569972589 is a wasteful number, since it uses less digits than its factorization.

2569972589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15766866.

The product of its digits is 24494400, while the sum is 62.

The square root of 2569972589 is about 50694.8970706125. The cubic root of 2569972589 is about 1369.7547981433.

The spelling of 2569972589 in words is "two billion, five hundred sixty-nine million, nine hundred seventy-two thousand, five hundred eighty-nine".