2557457382 has 16 divisors (see below), whose sum is σ = 5115757680. Its totient is φ = 852345312.

The previous prime is 2557457363. The next prime is 2557457429. The reversal of 2557457382 is 2837547552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8488 + ... + 72020.

It is an arithmetic number, because the mean of its divisors is an integer number (319734855).

Almost surely, 2^2557457382 is an apocalyptic number.

2557457382 is an abundant number, since it is smaller than the sum of its proper divisors (2558300298).

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

2557457382 is a wasteful number, since it uses less digits than its factorization.

2557457382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70247.

The product of its digits is 2352000, while the sum is 48.

The square root of 2557457382 is about 50571.3098703207. The cubic root of 2557457382 is about 1367.5277098572.

The spelling of 2557457382 in words is "two billion, five hundred fifty-seven million, four hundred fifty-seven thousand, three hundred eighty-two".