47222057 has 2 divisors, whose sum is σ = 47222058. Its totient is φ = 47222056.

The previous prime is 47222051. The next prime is 47222081. The reversal of 47222057 is 75022274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24364096 + 22857961 = 4936^2 + 4781^2 .

It is a cyclic number.

It is not a de Polignac number, because 47222057 - 2¹⁰ = 47221033 is a prime.

It is a super-2 number, since 2×47222057² = 4459845334622498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47222051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23611028 + 23611029.

It is an arithmetic number, because the mean of its divisors is an integer number (23611029).

Almost surely, 2^47222057 is an apocalyptic number.

It is an amenable number.

47222057 is a deficient number, since it is larger than the sum of its proper divisors (1).

47222057 is an equidigital number, since it uses as much as digits as its factorization.

47222057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 47222057 is about 6871.8306876698. The cubic root of 47222057 is about 361.4500593241.

The spelling of 47222057 in words is "forty-seven million, two hundred twenty-two thousand, fifty-seven".