2257558 has 4 divisors (see below), whose sum is σ = 3386340. Its totient is φ = 1128778.

The previous prime is 2257553. The next prime is 2257559. The reversal of 2257558 is 8557522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8557522 = 2 ⋅4278761.

It is a d-powerful number, because it can be written as 2⁹ + 2²¹ + 5⁵ + 7 + 5⁷ + 5⁷ + 8³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564388 + ... + 564391.

It is an arithmetic number, because the mean of its divisors is an integer number (846585).

2^2257558 is an apocalyptic number.

2257558 is a deficient number, since it is larger than the sum of its proper divisors (1128782).

2257558 is a wasteful number, since it uses less digits than its factorization.

2257558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128781.

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

The square root of 2257558 is about 1502.5172211991. The cubic root of 2257558 is about 131.1836284227.

The spelling of 2257558 in words is "two million, two hundred fifty-seven thousand, five hundred fifty-eight".