2509443260 has 12 divisors (see below), whose sum is σ = 5269830888. Its totient is φ = 1003777296.

The previous prime is 2509443257. The next prime is 2509443269. The reversal of 2509443260 is 623449052.

It is a self number, because there is not a number n which added to its sum of digits gives 2509443260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509443269) 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, 62736062 + ... + 62736101.

It is an arithmetic number, because the mean of its divisors is an integer number (439152574).

Almost surely, 2^2509443260 is an apocalyptic number.

2509443260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2509443260 is an abundant number, since it is smaller than the sum of its proper divisors (2760387628).

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

2509443260 is a wasteful number, since it uses less digits than its factorization.

2509443260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125472172 (or 125472170 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 2509443260 is about 50094.3435928649. The cubic root of 2509443260 is about 1358.9155245892.

The spelling of 2509443260 in words is "two billion, five hundred nine million, four hundred forty-three thousand, two hundred sixty".