2548782140 has 48 divisors (see below), whose sum is σ = 5435942400. Its totient is φ = 1003652160.

The previous prime is 2548782139. The next prime is 2548782157. The reversal of 2548782140 is 412878452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821161 + ... + 1822559.

It is an arithmetic number, because the mean of its divisors is an integer number (113248800).

Almost surely, 2^2548782140 is an apocalyptic number.

2548782140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2548782140 is an abundant number, since it is smaller than the sum of its proper divisors (2887160260).

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

2548782140 is a wasteful number, since it uses less digits than its factorization.

2548782140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2760 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 2548782140 is about 50485.4646408251. The cubic root of 2548782140 is about 1365.9796783896.

The spelling of 2548782140 in words is "two billion, five hundred forty-eight million, seven hundred eighty-two thousand, one hundred forty".