85152577 has 4 divisors (see below), whose sum is σ = 87454036. Its totient is φ = 82851120.

The previous prime is 85152569. The next prime is 85152607. The reversal of 85152577 is 77525158.

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 59660176 + 25492401 = 7724^2 + 5049^2 .

It is a cyclic number.

It is not a de Polignac number, because 85152577 - 2³ = 85152569 is a prime.

It is a super-2 number, since 2×85152577² = 14501922739481858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85152527) 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, 1150674 + ... + 1150747.

It is an arithmetic number, because the mean of its divisors is an integer number (21863509).

Almost surely, 2^85152577 is an apocalyptic number.

It is an amenable number.

85152577 is a deficient number, since it is larger than the sum of its proper divisors (2301459).

85152577 is a wasteful number, since it uses less digits than its factorization.

85152577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301458.

The product of its digits is 98000, while the sum is 40.

The square root of 85152577 is about 9227.8153969398. The cubic root of 85152577 is about 439.9458903846.

The spelling of 85152577 in words is "eighty-five million, one hundred fifty-two thousand, five hundred seventy-seven".