2557959 has 8 divisors (see below), whose sum is σ = 3432192. Its totient is φ = 1694520.

The previous prime is 2557957. The next prime is 2557963. The reversal of 2557959 is 9597552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2557959 - 2¹ = 2557957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2557959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557957) 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, 2127 + ... + 3104.

It is an arithmetic number, because the mean of its divisors is an integer number (429024).

2^2557959 is an apocalyptic number.

2557959 is a deficient number, since it is larger than the sum of its proper divisors (874233).

2557959 is a wasteful number, since it uses less digits than its factorization.

2557959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397.

The product of its digits is 141750, while the sum is 42.

The square root of 2557959 is about 1599.3620603228. The cubic root of 2557959 is about 136.7617112673.

The spelling of 2557959 in words is "two million, five hundred fifty-seven thousand, nine hundred fifty-nine".