2557267400 has 48 divisors (see below), whose sum is σ = 5948994240. Its totient is φ = 1022331200.

The previous prime is 2557267393. The next prime is 2557267403. The reversal of 2557267400 is 47627552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2557267403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636197 + ... + 640203.

It is an arithmetic number, because the mean of its divisors is an integer number (123937380).

Almost surely, 2^2557267400 is an apocalyptic number.

2557267400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2557267400 is an abundant number, since it is smaller than the sum of its proper divisors (3391726840).

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

2557267400 is a wasteful number, since it uses less digits than its factorization.

2557267400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214 (or 7205 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 2557267400 is about 50569.4314779195. The cubic root of 2557267400 is about 1367.4938465255.

The spelling of 2557267400 in words is "two billion, five hundred fifty-seven million, two hundred sixty-seven thousand, four hundred".