47222251 has 2 divisors, whose sum is σ = 47222252. Its totient is φ = 47222250.

The previous prime is 47222221. The next prime is 47222281. The reversal of 47222251 is 15222274.

It is a balanced prime because it is at equal distance from previous prime (47222221) and next prime (47222281).

It is a cyclic number.

It is not a de Polignac number, because 47222251 - 2⁹ = 47221739 is a prime.

It is not a weakly prime, because it can be changed into another prime (47222221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23611125 + 23611126.

It is an arithmetic number, because the mean of its divisors is an integer number (23611126).

Almost surely, 2^47222251 is an apocalyptic number.

47222251 is a deficient number, since it is larger than the sum of its proper divisors (1).

47222251 is an equidigital number, since it uses as much as digits as its factorization.

47222251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 25.

The square root of 47222251 is about 6871.8448032533. The cubic root of 47222251 is about 361.4505542991.

The spelling of 47222251 in words is "forty-seven million, two hundred twenty-two thousand, two hundred fifty-one".