2251803 has 16 divisors (see below), whose sum is σ = 3231360. Its totient is φ = 1389696.

The previous prime is 2251771. The next prime is 2251807. The reversal of 2251803 is 3081522.

It is not a de Polignac number, because 2251803 - 2⁵ = 2251771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2251803.

It is not an unprimeable number, because it can be changed into a prime (2251807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3088 + ... + 3746.

It is an arithmetic number, because the mean of its divisors is an integer number (201960).

2^2251803 is an apocalyptic number.

2251803 is a deficient number, since it is larger than the sum of its proper divisors (979557).

2251803 is a wasteful number, since it uses less digits than its factorization.

2251803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2251803 is about 1500.6008796479. The cubic root of 2251803 is about 131.0720618226.

The spelling of 2251803 in words is "two million, two hundred fifty-one thousand, eight hundred three".