85019534 has 4 divisors (see below), whose sum is σ = 127529304. Its totient is φ = 42509766.

The previous prime is 85019521. The next prime is 85019537. The reversal of 85019534 is 43591058.

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

It is a junction number, because it is equal to n+sod(n) for n = 85019494 and 85019503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85019537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21254882 + ... + 21254885.

It is an arithmetic number, because the mean of its divisors is an integer number (31882326).

Almost surely, 2^85019534 is an apocalyptic number.

85019534 is a deficient number, since it is larger than the sum of its proper divisors (42509770).

85019534 is a wasteful number, since it uses less digits than its factorization.

85019534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42509769.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 85019534 is about 9220.6037763261. The cubic root of 85019534 is about 439.7166460756.

The spelling of 85019534 in words is "eighty-five million, nineteen thousand, five hundred thirty-four".