2251403 has 12 divisors (see below), whose sum is σ = 2857752. Its totient is φ = 1753920.

The previous prime is 2251397. The next prime is 2251411. The reversal of 2251403 is 3041522.

It is not a de Polignac number, because 2251403 - 2⁸ = 2251147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1550 + ... + 2627.

It is an arithmetic number, because the mean of its divisors is an integer number (238146).

2^2251403 is an apocalyptic number.

2251403 is a deficient number, since it is larger than the sum of its proper divisors (606349).

2251403 is a wasteful number, since it uses less digits than its factorization.

2251403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2251403 is about 1500.4675937854. The cubic root of 2251403 is about 131.0643003489.

Adding to 2251403 its reverse (3041522), we get a palindrome (5292925).

The spelling of 2251403 in words is "two million, two hundred fifty-one thousand, four hundred three".