85222043 has 2 divisors, whose sum is σ = 85222044. Its totient is φ = 85222042.

The previous prime is 85222031. The next prime is 85222091. The reversal of 85222043 is 34022258.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85222043 is a prime.

It is a super-2 number, since 2×85222043² = 14525593226187698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85222013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42611021 + 42611022.

It is an arithmetic number, because the mean of its divisors is an integer number (42611022).

Almost surely, 2^85222043 is an apocalyptic number.

85222043 is a deficient number, since it is larger than the sum of its proper divisors (1).

85222043 is an equidigital number, since it uses as much as digits as its factorization.

85222043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 85222043 is about 9231.5785757367. The cubic root of 85222043 is about 440.0654912846.

The spelling of 85222043 in words is "eighty-five million, two hundred twenty-two thousand, forty-three".