85954513 has 4 divisors (see below), whose sum is σ = 86840740. Its totient is φ = 85068288.

The previous prime is 85954511. The next prime is 85954541. The reversal of 85954513 is 31545958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31545958 = 2 ⋅15772979.

It can be written as a sum of positive squares in 2 ways, for example, as 24127744 + 61826769 = 4912^2 + 7863^2 .

It is a cyclic number.

It is not a de Polignac number, because 85954513 - 2¹ = 85954511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85954511) 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, 442968 + ... + 443161.

It is an arithmetic number, because the mean of its divisors is an integer number (21710185).

Almost surely, 2^85954513 is an apocalyptic number.

It is an amenable number.

85954513 is a deficient number, since it is larger than the sum of its proper divisors (886227).

85954513 is an equidigital number, since it uses as much as digits as its factorization.

85954513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886226.

The product of its digits is 108000, while the sum is 40.

The square root of 85954513 is about 9271.1656764400. The cubic root of 85954513 is about 441.3226608749.

The spelling of 85954513 in words is "eighty-five million, nine hundred fifty-four thousand, five hundred thirteen".