2557954938 has 48 divisors (see below), whose sum is σ = 6492183264. Its totient is φ = 664403040.

The previous prime is 2557954921. The next prime is 2557954943. The reversal of 2557954938 is 8394597552.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392245 + ... + 398712.

It is an arithmetic number, because the mean of its divisors is an integer number (135253818).

Almost surely, 2^2557954938 is an apocalyptic number.

2557954938 is an abundant number, since it is smaller than the sum of its proper divisors (3934228326).

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

2557954938 is a wasteful number, since it uses less digits than its factorization.

2557954938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790987 (or 790980 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 57.

The square root of 2557954938 is about 50576.2289816076. The cubic root of 2557954938 is about 1367.6163887538.

The spelling of 2557954938 in words is "two billion, five hundred fifty-seven million, nine hundred fifty-four thousand, nine hundred thirty-eight".