2531643260 has 24 divisors (see below), whose sum is σ = 5336676576. Its totient is φ = 1008804800.

The previous prime is 2531643223. The next prime is 2531643263. The reversal of 2531643260 is 623461352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531643263) 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, 235391 + ... + 245910.

It is an arithmetic number, because the mean of its divisors is an integer number (222361524).

Almost surely, 2^2531643260 is an apocalyptic number.

2531643260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2531643260 is an abundant number, since it is smaller than the sum of its proper divisors (2805033316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531643260 is a wasteful number, since it uses less digits than its factorization.

2531643260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481573 (or 481571 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2531643260 is about 50315.4375912602. The cubic root of 2531643260 is about 1362.9110188306.

The spelling of 2531643260 in words is "two billion, five hundred thirty-one million, six hundred forty-three thousand, two hundred sixty".