2545803 has 16 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 1566432.

The previous prime is 2545783. The next prime is 2545811. The reversal of 2545803 is 3085452.

2545803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2545803 - 2⁵ = 2545771 is a prime.

It is a super-2 number, since 2×2545803² = 12962225829618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545843) 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 in 15 ways as a sum of consecutive naturals, for example, 3276 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (253890).

2^2545803 is an apocalyptic number.

2545803 is a deficient number, since it is larger than the sum of its proper divisors (1516437).

2545803 is a wasteful number, since it uses less digits than its factorization.

2545803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275 (or 7269 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2545803 is about 1595.5572694203. The cubic root of 2545803 is about 136.5447263164.

The spelling of 2545803 in words is "two million, five hundred forty-five thousand, eight hundred three".