2257005 has 32 divisors (see below), whose sum is σ = 3919104. Its totient is φ = 1104896.

The previous prime is 2257001. The next prime is 2257007. The reversal of 2257005 is 5007522.

It is a cyclic number.

It is not a de Polignac number, because 2257005 - 2² = 2257001 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13432 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (122472).

2^2257005 is an apocalyptic number.

It is an amenable number.

2257005 is a deficient number, since it is larger than the sum of its proper divisors (1662099).

2257005 is a wasteful number, since it uses less digits than its factorization.

2257005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245.

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 2257005 is about 1502.3331854153. Note that the first 3 decimals coincide. The cubic root of 2257005 is about 131.1729161884.

The spelling of 2257005 in words is "two million, two hundred fifty-seven thousand, five".