2555001 has 12 divisors (see below), whose sum is σ = 3851328. Its totient is φ = 1629144.

The previous prime is 2554991. The next prime is 2555009. The reversal of 2555001 is 1005552.

It is not a de Polignac number, because 2555001 - 2⁵ = 2554969 is a prime.

It is a super-2 number, since 2×2555001² = 13056060220002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555009) 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, 5965 + ... + 6378.

It is an arithmetic number, because the mean of its divisors is an integer number (320944).

2^2555001 is an apocalyptic number.

It is an amenable number.

2555001 is a deficient number, since it is larger than the sum of its proper divisors (1296327).

2555001 is a wasteful number, since it uses less digits than its factorization.

2555001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372 (or 12369 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 2555001 is about 1598.4370491202. The cubic root of 2555001 is about 136.7089742768.

The spelling of 2555001 in words is "two million, five hundred fifty-five thousand, one".