85503019 has 4 divisors (see below), whose sum is σ = 97717744. Its totient is φ = 73288296.

The previous prime is 85503017. The next prime is 85503023. The reversal of 85503019 is 91030558.

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 85503019 - 2¹ = 85503017 is a prime.

It is a super-3 number, since 3×85503019³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85503017) 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, 6107352 + ... + 6107365.

It is an arithmetic number, because the mean of its divisors is an integer number (24429436).

Almost surely, 2^85503019 is an apocalyptic number.

85503019 is a deficient number, since it is larger than the sum of its proper divisors (12214725).

85503019 is a wasteful number, since it uses less digits than its factorization.

85503019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12214724.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 85503019 is about 9246.7842518359. The cubic root of 85503019 is about 440.5485908718.

The spelling of 85503019 in words is "eighty-five million, five hundred three thousand, nineteen".