85111633 has 2 divisors, whose sum is σ = 85111634. Its totient is φ = 85111632.

The previous prime is 85111619. The next prime is 85111657. The reversal of 85111633 is 33611158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84125584 + 986049 = 9172^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 85111633 - 2⁵ = 85111601 is a prime.

It is not a weakly prime, because it can be changed into another prime (85111933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42555816 + 42555817.

It is an arithmetic number, because the mean of its divisors is an integer number (42555817).

Almost surely, 2^85111633 is an apocalyptic number.

It is an amenable number.

85111633 is a deficient number, since it is larger than the sum of its proper divisors (1).

85111633 is an equidigital number, since it uses as much as digits as its factorization.

85111633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 85111633 is about 9225.5966202734. The cubic root of 85111633 is about 439.8753658703.

The spelling of 85111633 in words is "eighty-five million, one hundred eleven thousand, six hundred thirty-three".