2564122231 has 8 divisors (see below), whose sum is σ = 2798256528. Its totient is φ = 2330160000.

The previous prime is 2564122229. The next prime is 2564122289. The reversal of 2564122231 is 1322214652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2564122231 - 2¹ = 2564122229 is a prime.

It is a super-2 number, since 2×2564122231² = 13149445631016834722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2564122231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564122331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10800 + ... + 72421.

It is an arithmetic number, because the mean of its divisors is an integer number (349782066).

Almost surely, 2^2564122231 is an apocalyptic number.

2564122231 is a deficient number, since it is larger than the sum of its proper divisors (234134297).

2564122231 is a wasteful number, since it uses less digits than its factorization.

2564122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86033.

The product of its digits is 5760, while the sum is 28.

The square root of 2564122231 is about 50637.1625488633. The cubic root of 2564122231 is about 1368.7146256476.

Adding to 2564122231 its reverse (1322214652), we get a palindrome (3886336883).

The spelling of 2564122231 in words is "two billion, five hundred sixty-four million, one hundred twenty-two thousand, two hundred thirty-one".