772226251 has 2 divisors, whose sum is σ = 772226252. Its totient is φ = 772226250.

The previous prime is 772226249. The next prime is 772226263. The reversal of 772226251 is 152622277.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 772226251 - 2¹ = 772226249 is a prime.

Together with 772226249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (772226051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386113125 + 386113126.

It is an arithmetic number, because the mean of its divisors is an integer number (386113126).

Almost surely, 2^772226251 is an apocalyptic number.

772226251 is a deficient number, since it is larger than the sum of its proper divisors (1).

772226251 is an equidigital number, since it uses as much as digits as its factorization.

772226251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 772226251 is about 27788.9591564708. The cubic root of 772226251 is about 917.4481310653.

The spelling of 772226251 in words is "seven hundred seventy-two million, two hundred twenty-six thousand, two hundred fifty-one".