2251402253 has 4 divisors (see below), whose sum is σ = 2252384700. Its totient is φ = 2250419808.

The previous prime is 2251402217. The next prime is 2251402267. The reversal of 2251402253 is 3522041522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1885904329 + 365497924 = 43427^2 + 19118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251402253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251402453) 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 3 ways as a sum of consecutive naturals, for example, 487778 + ... + 492371.

It is an arithmetic number, because the mean of its divisors is an integer number (563096175).

Almost surely, 2^2251402253 is an apocalyptic number.

It is an amenable number.

2251402253 is a deficient number, since it is larger than the sum of its proper divisors (982447).

2251402253 is an equidigital number, since it uses as much as digits as its factorization.

2251402253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982446.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2251402253 is about 47448.9436447220. The cubic root of 2251402253 is about 1310.6428585348.

Adding to 2251402253 its reverse (3522041522), we get a palindrome (5773443775).

The spelling of 2251402253 in words is "two billion, two hundred fifty-one million, four hundred two thousand, two hundred fifty-three".