2558025 has 18 divisors (see below), whose sum is σ = 4582110. Its totient is φ = 1364160.

The previous prime is 2558021. The next prime is 2558029. The reversal of 2558025 is 5208552.

It is an interprime number because it is at equal distance from previous prime (2558021) and next prime (2558029).

It can be written as a sum of positive squares in 3 ways, for example, as 207936 + 2350089 = 456^2 + 1533^2 .

It is not a de Polignac number, because 2558025 - 2² = 2558021 is a prime.

2558025 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2558025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2558021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5460 + ... + 5909.

2^2558025 is an apocalyptic number.

2558025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2558025 is a deficient number, since it is larger than the sum of its proper divisors (2024085).

2558025 is a wasteful number, since it uses less digits than its factorization.

2558025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385 (or 11377 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2558025 is about 1599.3826934164. The cubic root of 2558025 is about 136.7628874909.

The spelling of 2558025 in words is "two million, five hundred fifty-eight thousand, twenty-five".