4172513085 has 48 divisors (see below), whose sum is σ = 7794586800. Its totient is φ = 2052605952.

The previous prime is 4172513057. The next prime is 4172513101. The reversal of 4172513085 is 5803152714.

It can be written as a sum of positive squares in 8 ways, for example, as 112656996 + 4059856089 = 10614^2 + 63717^2 .

It is not a de Polignac number, because 4172513085 - 2⁹ = 4172512573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1349221 + ... + 1352309.

It is an arithmetic number, because the mean of its divisors is an integer number (162387225).

Almost surely, 2^4172513085 is an apocalyptic number.

4172513085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4172513085 is a deficient number, since it is larger than the sum of its proper divisors (3622073715).

4172513085 is a wasteful number, since it uses less digits than its factorization.

4172513085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422 (or 5419 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 4172513085 is about 64594.9927238946. The cubic root of 4172513085 is about 1609.9012432512.

Adding to 4172513085 its reverse (5803152714), we get a palindrome (9975665799).

The spelling of 4172513085 in words is "four billion, one hundred seventy-two million, five hundred thirteen thousand, eighty-five".