2251503 has 8 divisors (see below), whose sum is σ = 3335600. Its totient is φ = 1500984.

The previous prime is 2251489. The next prime is 2251507. The reversal of 2251503 is 3051522.

It is a happy number.

It is not a de Polignac number, because 2251503 - 2⁵ = 2251471 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251507) 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 7 ways as a sum of consecutive naturals, for example, 41668 + ... + 41721.

It is an arithmetic number, because the mean of its divisors is an integer number (416950).

2^2251503 is an apocalyptic number.

2251503 is a deficient number, since it is larger than the sum of its proper divisors (1084097).

2251503 is an equidigital number, since it uses as much as digits as its factorization.

2251503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83398 (or 83392 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2251503 is about 1500.5009163609. The cubic root of 2251503 is about 131.0662408035.

It can be divided in two parts, 225 and 1503, that added together give a cube (1728 = 12³).

The spelling of 2251503 in words is "two million, two hundred fifty-one thousand, five hundred three".