2251822451 has 2 divisors, whose sum is σ = 2251822452. Its totient is φ = 2251822450.

The previous prime is 2251822427. The next prime is 2251822457. The reversal of 2251822451 is 1542281522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2251822451 - 2¹⁰ = 2251821427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2251822457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125911225 + 1125911226.

It is an arithmetic number, because the mean of its divisors is an integer number (1125911226).

Almost surely, 2^2251822451 is an apocalyptic number.

2251822451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251822451 is an equidigital number, since it uses as much as digits as its factorization.

2251822451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12800, while the sum is 32.

The square root of 2251822451 is about 47453.3713343952. The cubic root of 2251822451 is about 1310.7243922024.

The spelling of 2251822451 in words is "two billion, two hundred fifty-one million, eight hundred twenty-two thousand, four hundred fifty-one".