2548271640 has 128 divisors (see below), whose sum is σ = 8090265600. Its totient is φ = 640327680.

The previous prime is 2548271629. The next prime is 2548271657. The reversal of 2548271640 is 461728452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 437145 + ... + 442935.

It is an arithmetic number, because the mean of its divisors is an integer number (63205200).

Almost surely, 2^2548271640 is an apocalyptic number.

2548271640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2548271640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4045132800).

2548271640 is an abundant number, since it is smaller than the sum of its proper divisors (5541993960).

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

2548271640 is a wasteful number, since it uses less digits than its factorization.

2548271640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6017 (or 6013 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2548271640 is about 50480.4084769527. The cubic root of 2548271640 is about 1365.8884741531. Note that the first 3 decimals are identical.

The spelling of 2548271640 in words is "two billion, five hundred forty-eight million, two hundred seventy-one thousand, six hundred forty".