2258557 has 6 divisors (see below), whose sum is σ = 2627358. Its totient is φ = 1935864.

The previous prime is 2258539. The next prime is 2258561. The reversal of 2258557 is 7558522.

It can be written as a sum of positive squares in only one way, i.e., 1920996 + 337561 = 1386^2 + 581^2 .

It is not a de Polignac number, because 2258557 - 2⁷ = 2258429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22998 + ... + 23095.

It is an arithmetic number, because the mean of its divisors is an integer number (437893).

2^2258557 is an apocalyptic number.

It is an amenable number.

2258557 is a deficient number, since it is larger than the sum of its proper divisors (368801).

2258557 is an equidigital number, since it uses as much as digits as its factorization.

2258557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46107 (or 46100 counting only the distinct ones).

The product of its digits is 28000, while the sum is 34.

The square root of 2258557 is about 1502.8496265429. The cubic root of 2258557 is about 131.2029757468.

The spelling of 2258557 in words is "two million, two hundred fifty-eight thousand, five hundred fifty-seven".