2557375 has 16 divisors (see below), whose sum is σ = 3276000. Its totient is φ = 1992000.

The previous prime is 2557369. The next prime is 2557397. The reversal of 2557375 is 5737552.

It is not a de Polignac number, because 2557375 - 2³ = 2557367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2557375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (204750).

2^2557375 is an apocalyptic number.

2557375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2557375 is a deficient number, since it is larger than the sum of its proper divisors (718625).

2557375 is an equidigital number, since it uses as much as digits as its factorization.

2557375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 545 counting only the distinct ones).

The product of its digits is 36750, while the sum is 34.

The square root of 2557375 is about 1599.1794771069. The cubic root of 2557375 is about 136.7513025888.

The spelling of 2557375 in words is "two million, five hundred fifty-seven thousand, three hundred seventy-five".