2562403 has 2 divisors, whose sum is σ = 2562404. Its totient is φ = 2562402.

The previous prime is 2562389. The next prime is 2562421. The reversal of 2562403 is 3042652.

It is a happy number.

2562403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2562403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2562433) 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 as a sum of consecutive naturals, namely, 1281201 + 1281202.

It is an arithmetic number, because the mean of its divisors is an integer number (1281202).

2^2562403 is an apocalyptic number.

2562403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2562403 is an equidigital number, since it uses as much as digits as its factorization.

2562403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2562403 is about 1600.7507613617. The cubic root of 2562403 is about 136.8408651839.

Subtracting 2562403 from its reverse (3042652), we obtain a square (480249 = 693²).

The spelling of 2562403 in words is "two million, five hundred sixty-two thousand, four hundred three".