2025657 has 12 divisors (see below), whose sum is σ = 2945124. Its totient is φ = 1341600.

The previous prime is 2025649. The next prime is 2025659. The reversal of 2025657 is 7565202.

2025657 is a `hidden beast` number, since 2 + 0 + 2 + 5 + 657 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 1279161 = 864^2 + 1131^2 .

It is not a de Polignac number, because 2025657 - 2³ = 2025649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2025657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025659) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 907 + ... + 2207.

It is an arithmetic number, because the mean of its divisors is an integer number (245427).

2^2025657 is an apocalyptic number.

It is an amenable number.

2025657 is a deficient number, since it is larger than the sum of its proper divisors (919467).

2025657 is a wasteful number, since it uses less digits than its factorization.

2025657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2025657 is about 1423.2557746238. The cubic root of 2025657 is about 126.5285806679.

The spelling of 2025657 in words is "two million, twenty-five thousand, six hundred fifty-seven".