2557465854 has 32 divisors (see below), whose sum is σ = 5388197760. Its totient is φ = 807012000.

The previous prime is 2557465843. The next prime is 2557465871. The reversal of 2557465854 is 4585647552.

It is a junction number, because it is equal to n+sod(n) for n = 2557465797 and 2557465806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157684 + ... + 173144.

It is an arithmetic number, because the mean of its divisors is an integer number (168381180).

Almost surely, 2^2557465854 is an apocalyptic number.

2557465854 is an abundant number, since it is smaller than the sum of its proper divisors (2830731906).

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

2557465854 is a wasteful number, since it uses less digits than its factorization.

2557465854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16936.

The product of its digits is 6720000, while the sum is 51.

The square root of 2557465854 is about 50571.3936331598. The cubic root of 2557465854 is about 1367.5292199093.

The spelling of 2557465854 in words is "two billion, five hundred fifty-seven million, four hundred sixty-five thousand, eight hundred fifty-four".