2556025 has 6 divisors (see below), whose sum is σ = 3169502. Its totient is φ = 2044800.

The previous prime is 2556023. The next prime is 2556041. The reversal of 2556025 is 5206552.

It can be written as a sum of positive squares in 3 ways, for example, as 281961 + 2274064 = 531^2 + 1508^2 .

It is not a de Polignac number, because 2556025 - 2¹ = 2556023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 102241 = 2556025 / (2 + 5 + 5 + 6 + 0 + 2 + 5).

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2556023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51096 + ... + 51145.

2^2556025 is an apocalyptic number.

2556025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2556025 is a deficient number, since it is larger than the sum of its proper divisors (613477).

2556025 is a wasteful number, since it uses less digits than its factorization.

2556025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102251 (or 102246 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2556025 is about 1598.7573299285. The cubic root of 2556025 is about 136.7272353645.

The spelling of 2556025 in words is "two million, five hundred fifty-six thousand, twenty-five".