2557253420 has 12 divisors (see below), whose sum is σ = 5370232224. Its totient is φ = 1022901360.

The previous prime is 2557253417. The next prime is 2557253443. The reversal of 2557253420 is 243527552.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63931316 + ... + 63931355.

It is an arithmetic number, because the mean of its divisors is an integer number (447519352).

Almost surely, 2^2557253420 is an apocalyptic number.

2557253420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2557253420 is an abundant number, since it is smaller than the sum of its proper divisors (2812978804).

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

2557253420 is a wasteful number, since it uses less digits than its factorization.

2557253420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127862680 (or 127862678 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 35.

The square root of 2557253420 is about 50569.2932519330. The cubic root of 2557253420 is about 1367.4913545949.

The spelling of 2557253420 in words is "two billion, five hundred fifty-seven million, two hundred fifty-three thousand, four hundred twenty".