2566498280 has 32 divisors (see below), whose sum is σ = 5847724800. Its totient is φ = 1013603136.

The previous prime is 2566498267. The next prime is 2566498331. The reversal of 2566498280 is 828946652.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402932 + ... + 409251.

It is an arithmetic number, because the mean of its divisors is an integer number (182741400).

Almost surely, 2^2566498280 is an apocalyptic number.

2566498280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2566498280 is an abundant number, since it is smaller than the sum of its proper divisors (3281226520).

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

2566498280 is a wasteful number, since it uses less digits than its factorization.

2566498280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812273 (or 812269 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 2566498280 is about 50660.6186302536. The cubic root of 2566498280 is about 1369.1372691763.

The spelling of 2566498280 in words is "two billion, five hundred sixty-six million, four hundred ninety-eight thousand, two hundred eighty".