2563045 has 4 divisors (see below), whose sum is σ = 3075660. Its totient is φ = 2050432.

The previous prime is 2563013. The next prime is 2563063. The reversal of 2563045 is 5403652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1483524 + 1079521 = 1218^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563045 - 2⁵ = 2563013 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 256300 + ... + 256309.

It is an arithmetic number, because the mean of its divisors is an integer number (768915).

2^2563045 is an apocalyptic number.

It is an amenable number.

2563045 is a deficient number, since it is larger than the sum of its proper divisors (512615).

2563045 is an equidigital number, since it uses as much as digits as its factorization.

2563045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512614.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2563045 is about 1600.9512797084. The cubic root of 2563045 is about 136.8522925433.

Adding to 2563045 its reverse (5403652), we get a palindrome (7966697).

The spelling of 2563045 in words is "two million, five hundred sixty-three thousand, forty-five".