2557025 has 12 divisors (see below), whose sum is σ = 3309312. Its totient is φ = 1956240.

The previous prime is 2557013. The next prime is 2557063. The reversal of 2557025 is 5207552.

It is not a de Polignac number, because 2557025 - 2¹⁴ = 2540641 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2556985 and 2557003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1649 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (275776).

2^2557025 is an apocalyptic number.

2557025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2557025 is a deficient number, since it is larger than the sum of its proper divisors (752287).

2557025 is a wasteful number, since it uses less digits than its factorization.

2557025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 2557025 is about 1599.0700422433. The cubic root of 2557025 is about 136.7450637515.

The spelling of 2557025 in words is "two million, five hundred fifty-seven thousand, twenty-five".