2564262231 has 4 divisors (see below), whose sum is σ = 3419016312. Its totient is φ = 1709508152.

The previous prime is 2564262229. The next prime is 2564262263. The reversal of 2564262231 is 1322624652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2564262231 - 2¹ = 2564262229 is a prime.

It is a super-2 number, since 2×2564262231² = 13150881578666194722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2564262192 and 2564262201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564267231) 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, 427377036 + ... + 427377041.

It is an arithmetic number, because the mean of its divisors is an integer number (854754078).

Almost surely, 2^2564262231 is an apocalyptic number.

2564262231 is a deficient number, since it is larger than the sum of its proper divisors (854754081).

2564262231 is an equidigital number, since it uses as much as digits as its factorization.

2564262231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854754080.

The product of its digits is 34560, while the sum is 33.

The square root of 2564262231 is about 50638.5449139290. The cubic root of 2564262231 is about 1368.7395356094.

Adding to 2564262231 its reverse (1322624652), we get a palindrome (3886886883).

The spelling of 2564262231 in words is "two billion, five hundred sixty-four million, two hundred sixty-two thousand, two hundred thirty-one".