2557404372 has 24 divisors (see below), whose sum is σ = 5972776992. Its totient is φ = 851682400.

The previous prime is 2557404359. The next prime is 2557404379. The reversal of 2557404372 is 2734047552.

2557404372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2557404372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557404379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84579 + ... + 110762.

It is an arithmetic number, because the mean of its divisors is an integer number (248865708).

Almost surely, 2^2557404372 is an apocalyptic number.

It is an amenable number.

2557404372 is an abundant number, since it is smaller than the sum of its proper divisors (3415372620).

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

2557404372 is a wasteful number, since it uses less digits than its factorization.

2557404372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196439 (or 196437 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 39.

The square root of 2557404372 is about 50570.7857562051. The cubic root of 2557404372 is about 1367.5182612612.

The spelling of 2557404372 in words is "two billion, five hundred fifty-seven million, four hundred four thousand, three hundred seventy-two".