85573331 has 2 divisors, whose sum is σ = 85573332. Its totient is φ = 85573330.

The previous prime is 85573309. The next prime is 85573337. The reversal of 85573331 is 13337558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85573331 is a prime.

It is a super-2 number, since 2×85573331² = 14645589956871122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85573291 and 85573300.

It is not a weakly prime, because it can be changed into another prime (85573337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42786665 + 42786666.

It is an arithmetic number, because the mean of its divisors is an integer number (42786666).

Almost surely, 2^85573331 is an apocalyptic number.

85573331 is a deficient number, since it is larger than the sum of its proper divisors (1).

85573331 is an equidigital number, since it uses as much as digits as its factorization.

85573331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 85573331 is about 9250.5854409329. The cubic root of 85573331 is about 440.6693170790.

The spelling of 85573331 in words is "eighty-five million, five hundred seventy-three thousand, three hundred thirty-one".