2553242 has 4 divisors (see below), whose sum is σ = 3829866. Its totient is φ = 1276620.

The previous prime is 2553241. The next prime is 2553251. The reversal of 2553242 is 2423552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1745041 + 808201 = 1321^2 + 899^2 .

It is not an unprimeable number, because it can be changed into a prime (2553241) 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 as a sum of consecutive naturals, namely, 638309 + ... + 638312.

2^2553242 is an apocalyptic number.

2553242 is a deficient number, since it is larger than the sum of its proper divisors (1276624).

2553242 is a wasteful number, since it uses less digits than its factorization.

2553242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276623.

The product of its digits is 2400, while the sum is 23.

The square root of 2553242 is about 1597.8867294023. The cubic root of 2553242 is about 136.6775944729.

Adding to 2553242 its reverse (2423552), we get a palindrome (4976794).

The spelling of 2553242 in words is "two million, five hundred fifty-three thousand, two hundred forty-two".