2557233 has 12 divisors (see below), whose sum is σ = 4221568. Its totient is φ = 1461240.

The previous prime is 2557231. The next prime is 2557241. The reversal of 2557233 is 3327552.

It is not a de Polignac number, because 2557233 - 2¹ = 2557231 is a prime.

It is a d-powerful number, because it can be written as 2⁶ + 5⁸ + 5⁸ + 7⁴ + 2¹¹ + 3¹¹ + 3¹³ .

It is a Duffinian number.

2557233 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2557197 and 2557206.

It is not an unprimeable number, because it can be changed into a prime (2557231) 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, 20233 + ... + 20358.

2^2557233 is an apocalyptic number.

It is an amenable number.

2557233 is a deficient number, since it is larger than the sum of its proper divisors (1664335).

2557233 is a wasteful number, since it uses less digits than its factorization.

2557233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40604 (or 40601 counting only the distinct ones).

The product of its digits is 6300, while the sum is 27.

The square root of 2557233 is about 1599.1350787222. The cubic root of 2557233 is about 136.7487714720.

The spelling of 2557233 in words is "two million, five hundred fifty-seven thousand, two hundred thirty-three".