2557533 has 16 divisors (see below), whose sum is σ = 3916800. Its totient is φ = 1468080.

The previous prime is 2557519. The next prime is 2557553. The reversal of 2557533 is 3357552.

2557533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2557533 - 2⁴ = 2557517 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557553) 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 15 ways as a sum of consecutive naturals, for example, 1413 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (244800).

2^2557533 is an apocalyptic number.

It is an amenable number.

2557533 is a deficient number, since it is larger than the sum of its proper divisors (1359267).

2557533 is a wasteful number, since it uses less digits than its factorization.

2557533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112.

The product of its digits is 15750, while the sum is 30.

The square root of 2557533 is about 1599.2288766778. The cubic root of 2557533 is about 136.7541187917.

The spelling of 2557533 in words is "two million, five hundred fifty-seven thousand, five hundred thirty-three".