2557425 has 48 divisors (see below), whose sum is σ = 4735808. Its totient is φ = 1209600.

The previous prime is 2557417. The next prime is 2557433. The reversal of 2557425 is 5247552.

2557425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2557417) and next prime (2557433).

It is not a de Polignac number, because 2557425 - 2³ = 2557417 is a prime.

It is a Duffinian number.

Its product of digits (14000) is a multiple of the sum of its prime divisors (125).

It is a junction number, because it is equal to n+sod(n) for n = 2557392 and 2557401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41895 + ... + 41955.

2^2557425 is an apocalyptic number.

2557425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2557425 is a deficient number, since it is larger than the sum of its proper divisors (2178383).

2557425 is a wasteful number, since it uses less digits than its factorization.

2557425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 125 counting only the distinct ones).

The product of its digits is 14000, while the sum is 30.

The square root of 2557425 is about 1599.1951100476. The cubic root of 2557425 is about 136.7521938048.

The spelling of 2557425 in words is "two million, five hundred fifty-seven thousand, four hundred twenty-five".