2557325 has 6 divisors (see below), whose sum is σ = 3171114. Its totient is φ = 2045840.

The previous prime is 2557297. The next prime is 2557333. The reversal of 2557325 is 5237552.

It can be written as a sum of positive squares in 3 ways, for example, as 3721 + 2553604 = 61^2 + 1598^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2557325 is a prime.

It is a super-2 number, since 2×2557325² = 13079822311250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 5⁶ + 5⁶ + 7⁵ + 3¹³ + 2¹⁹ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51122 + ... + 51171.

It is an arithmetic number, because the mean of its divisors is an integer number (528519).

2^2557325 is an apocalyptic number.

2557325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2557325 is a deficient number, since it is larger than the sum of its proper divisors (613789).

2557325 is a wasteful number, since it uses less digits than its factorization.

2557325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102303 (or 102298 counting only the distinct ones).

The product of its digits is 10500, while the sum is 29.

The square root of 2557325 is about 1599.1638440135. The cubic root of 2557325 is about 136.7504113612.

It can be divided in two parts, 2557 and 325, that added together give a palindrome (2882).

The spelling of 2557325 in words is "two million, five hundred fifty-seven thousand, three hundred twenty-five".