2557116 has 24 divisors (see below), whose sum is σ = 6629840. Its totient is φ = 852336.

The previous prime is 2557111. The next prime is 2557127. The reversal of 2557116 is 6117552.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2557116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557111) 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, 11731 + ... + 11946.

2^2557116 is an apocalyptic number.

It is an amenable number.

2557116 is an abundant number, since it is smaller than the sum of its proper divisors (4072724).

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

2557116 is a wasteful number, since it uses less digits than its factorization.

2557116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23690 (or 23682 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 2557116 is about 1599.0984960283. The cubic root of 2557116 is about 136.7466859040.

The spelling of 2557116 in words is "two million, five hundred fifty-seven thousand, one hundred sixteen".