2553493 has 4 divisors (see below), whose sum is σ = 2556748. Its totient is φ = 2550240.

The previous prime is 2553491. The next prime is 2553497. The reversal of 2553493 is 3943552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2093809 + 459684 = 1447^2 + 678^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553493 - 2¹ = 2553491 is a prime.

It is a d-powerful number, because it can be written as 2²⁰ + 5² + 5⁸ + 3⁸ + 4¹⁰ + 9² + 3¹⁰ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553491) 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 3 ways as a sum of consecutive naturals, for example, 355 + ... + 2287.

It is an arithmetic number, because the mean of its divisors is an integer number (639187).

2^2553493 is an apocalyptic number.

It is an amenable number.

2553493 is a deficient number, since it is larger than the sum of its proper divisors (3255).

2553493 is a wasteful number, since it uses less digits than its factorization.

2553493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its digits is 16200, while the sum is 31.

The square root of 2553493 is about 1597.9652687089. The cubic root of 2553493 is about 136.6820730864.

The spelling of 2553493 in words is "two million, five hundred fifty-three thousand, four hundred ninety-three".