85090511 has 8 divisors (see below), whose sum is σ = 92934864. Its totient is φ = 77264320.

The previous prime is 85090487. The next prime is 85090513. The reversal of 85090511 is 11509058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85090511 - 2²⁶ = 17981647 is a prime.

It is a super-2 number, since 2×85090511² = 14480790124482242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85090513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6425 + ... + 14541.

It is an arithmetic number, because the mean of its divisors is an integer number (11616858).

Almost surely, 2^85090511 is an apocalyptic number.

85090511 is a deficient number, since it is larger than the sum of its proper divisors (7844353).

85090511 is a wasteful number, since it uses less digits than its factorization.

85090511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 85090511 is about 9224.4517994296. The cubic root of 85090511 is about 439.8389751686.

Adding to 85090511 its reverse (11509058), we get a palindrome (96599569).

The spelling of 85090511 in words is "eighty-five million, ninety thousand, five hundred eleven".