2522258 has 6 divisors (see below), whose sum is σ = 3786759. Its totient is φ = 1260006.

The previous prime is 2522257. The next prime is 2522263. The reversal of 2522258 is 8522252.

It is a happy number.

2522258 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 1261129 = 1123^2 + 1123^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1123.

It is a d-powerful number, because it can be written as 2¹⁰ + 5⁴ + 2¹⁵ + 2²⁰ + 2²⁰ + 5⁸ + 8² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2522257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1685 + ... + 2807.

2^2522258 is an apocalyptic number.

2522258 is a deficient number, since it is larger than the sum of its proper divisors (1264501).

2522258 is an frugal number, since it uses more digits than its factorization.

2522258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 1125 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 2522258 is about 1588.1618305450. The cubic root of 2522258 is about 136.1224747358.

Multiplying 2522258 by its product of digits (3200), we get a square (8071225600 = 89840²).

The spelling of 2522258 in words is "two million, five hundred twenty-two thousand, two hundred fifty-eight".