2251487743 has 2 divisors, whose sum is σ = 2251487744. Its totient is φ = 2251487742.

The previous prime is 2251487741. The next prime is 2251487773. The reversal of 2251487743 is 3477841522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2251487743 - 2¹ = 2251487741 is a prime.

Together with 2251487741, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2251487743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251487741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125743871 + 1125743872.

It is an arithmetic number, because the mean of its divisors is an integer number (1125743872).

Almost surely, 2^2251487743 is an apocalyptic number.

2251487743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251487743 is an equidigital number, since it uses as much as digits as its factorization.

2251487743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 43.

The square root of 2251487743 is about 47449.8444992183. The cubic root of 2251487743 is about 1310.6594475206.

The spelling of 2251487743 in words is "two billion, two hundred fifty-one million, four hundred eighty-seven thousand, seven hundred forty-three".