2251275463 has 2 divisors, whose sum is σ = 2251275464. Its totient is φ = 2251275462.

The previous prime is 2251275461. The next prime is 2251275491. The reversal of 2251275463 is 3645721522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2251275463 - 2¹ = 2251275461 is a prime.

Together with 2251275461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2251275461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125637731 + 1125637732.

It is an arithmetic number, because the mean of its divisors is an integer number (1125637732).

Almost surely, 2^2251275463 is an apocalyptic number.

2251275463 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251275463 is an equidigital number, since it uses as much as digits as its factorization.

2251275463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 2251275463 is about 47447.6075582321. The cubic root of 2251275463 is about 1310.6182546792.

Adding to 2251275463 its reverse (3645721522), we get a palindrome (5896996985).

The spelling of 2251275463 in words is "two billion, two hundred fifty-one million, two hundred seventy-five thousand, four hundred sixty-three".