2251003 has 4 divisors (see below), whose sum is σ = 2323648. Its totient is φ = 2178360.

The previous prime is 2251001. The next prime is 2251031. The reversal of 2251003 is 3001522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3001522 = 2 ⋅1500761.

It is a cyclic number.

It is not a de Polignac number, because 2251003 - 2¹ = 2251001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36276 + ... + 36337.

It is an arithmetic number, because the mean of its divisors is an integer number (580912).

2^2251003 is an apocalyptic number.

2251003 is a deficient number, since it is larger than the sum of its proper divisors (72645).

2251003 is an equidigital number, since it uses as much as digits as its factorization.

2251003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72644.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2251003 is about 1500.3342960820. The cubic root of 2251003 is about 131.0565379558.

Adding to 2251003 its reverse (3001522), we get a palindrome (5252525).

The spelling of 2251003 in words is "two million, two hundred fifty-one thousand, three".