85095557 has 4 divisors (see below), whose sum is σ = 90101196. Its totient is φ = 80089920.

The previous prime is 85095551. The next prime is 85095583. The reversal of 85095557 is 75559058.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25897921 + 59197636 = 5089^2 + 7694^2 .

It is a cyclic number.

It is not a de Polignac number, because 85095557 - 2¹⁴ = 85079173 is a prime.

It is a super-2 number, since 2×85095557² = 14482507642280498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85095551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502794 + ... + 2502827.

It is an arithmetic number, because the mean of its divisors is an integer number (22525299).

Almost surely, 2^85095557 is an apocalyptic number.

It is an amenable number.

85095557 is a deficient number, since it is larger than the sum of its proper divisors (5005639).

85095557 is a wasteful number, since it uses less digits than its factorization.

85095557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005638.

The product of its (nonzero) digits is 315000, while the sum is 44.

The square root of 85095557 is about 9224.7253075634. The cubic root of 85095557 is about 439.8476693758.

The spelling of 85095557 in words is "eighty-five million, ninety-five thousand, five hundred fifty-seven".