1256025 has 12 divisors (see below), whose sum is σ = 2076752. Its totient is φ = 669840.

The previous prime is 1256023. The next prime is 1256029. The reversal of 1256025 is 5206521.

It is not a de Polignac number, because 1256025 - 2¹ = 1256023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255992 and 1256010.

It is not an unprimeable number, because it can be changed into a prime (1256023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8299 + ... + 8448.

2^1256025 is an apocalyptic number.

1256025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1256025 is a deficient number, since it is larger than the sum of its proper divisors (820727).

1256025 is a wasteful number, since it uses less digits than its factorization.

1256025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16760 (or 16755 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1256025 is about 1120.7252116375. The cubic root of 1256025 is about 107.8945300934.

The spelling of 1256025 in words is "one million, two hundred fifty-six thousand, twenty-five".