85265511 has 4 divisors (see below), whose sum is σ = 113687352. Its totient is φ = 56843672.

The previous prime is 85265507. The next prime is 85265573. The reversal of 85265511 is 11556258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85265511 - 2² = 85265507 is a prime.

It is a super-2 number, since 2×85265511² = 14540414732182242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85265581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14210916 + ... + 14210921.

It is an arithmetic number, because the mean of its divisors is an integer number (28421838).

Almost surely, 2^85265511 is an apocalyptic number.

85265511 is a deficient number, since it is larger than the sum of its proper divisors (28421841).

85265511 is a wasteful number, since it uses less digits than its factorization.

85265511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28421840.

The product of its digits is 12000, while the sum is 33.

The square root of 85265511 is about 9233.9325858488. The cubic root of 85265511 is about 440.1402978909.

The spelling of 85265511 in words is "eighty-five million, two hundred sixty-five thousand, five hundred eleven".