2542203 has 12 divisors (see below), whose sum is σ = 3758040. Its totient is φ = 1655136.

The previous prime is 2542201. The next prime is 2542223. The reversal of 2542203 is 3022452.

It is not a de Polignac number, because 2542203 - 2¹ = 2542201 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2542201) 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 11 ways as a sum of consecutive naturals, for example, 2898 + ... + 3671.

It is an arithmetic number, because the mean of its divisors is an integer number (313170).

2^2542203 is an apocalyptic number.

2542203 is a deficient number, since it is larger than the sum of its proper divisors (1215837).

2542203 is a wasteful number, since it uses less digits than its factorization.

2542203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618 (or 6615 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2542203 is about 1594.4287378243. The cubic root of 2542203 is about 136.4803336800.

Adding to 2542203 its reverse (3022452), we get a palindrome (5564655).

Subtracting 2542203 from its reverse (3022452), we obtain a square (480249 = 693²).

The spelling of 2542203 in words is "two million, five hundred forty-two thousand, two hundred three".