2560625 has 20 divisors (see below), whose sum is σ = 3402036. Its totient is φ = 1920000.

The previous prime is 2560603. The next prime is 2560637. The reversal of 2560625 is 5260652.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 1290496 + 1270129 = 1136^2 + 1127^2 .

It is not a de Polignac number, because 2560625 - 2¹⁸ = 2298481 is a prime.

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 = 2560594 and 2560603.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10505 + ... + 10745.

2^2560625 is an apocalyptic number.

2560625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2560625 is a deficient number, since it is larger than the sum of its proper divisors (841411).

2560625 is an equidigital number, since it uses as much as digits as its factorization.

2560625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2560625 is about 1600.1953005805. The cubic root of 2560625 is about 136.8092074842.

The spelling of 2560625 in words is "two million, five hundred sixty thousand, six hundred twenty-five".