85919055 has 24 divisors (see below), whose sum is σ = 140511792. Its totient is φ = 44831232.

The previous prime is 85919047. The next prime is 85919059. The reversal of 85919055 is 55091958.

It is a happy number.

It is not a de Polignac number, because 85919055 - 2³ = 85919047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85918998 and 85919016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85919059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31839 + ... + 34431.

It is an arithmetic number, because the mean of its divisors is an integer number (5854658).

Almost surely, 2^85919055 is an apocalyptic number.

85919055 is a deficient number, since it is larger than the sum of its proper divisors (54592737).

85919055 is a wasteful number, since it uses less digits than its factorization.

85919055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695 (or 2648 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 42.

The square root of 85919055 is about 9269.2532061650. The cubic root of 85919055 is about 441.2619676445.

The spelling of 85919055 in words is "eighty-five million, nine hundred nineteen thousand, fifty-five".