85167503 has 4 divisors (see below), whose sum is σ = 86611080. Its totient is φ = 83723928.

The previous prime is 85167497. The next prime is 85167521. The reversal of 85167503 is 30576158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30576158 = 2 ⋅15288079.

It is a cyclic number.

It is not a de Polignac number, because 85167503 - 2¹⁶ = 85101967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85167583) 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, 721700 + ... + 721817.

It is an arithmetic number, because the mean of its divisors is an integer number (21652770).

Almost surely, 2^85167503 is an apocalyptic number.

85167503 is a deficient number, since it is larger than the sum of its proper divisors (1443577).

85167503 is a wasteful number, since it uses less digits than its factorization.

85167503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443576.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 85167503 is about 9228.6241119682. The cubic root of 85167503 is about 439.9715942406.

The spelling of 85167503 in words is "eighty-five million, one hundred sixty-seven thousand, five hundred three".