85522113 has 24 divisors (see below), whose sum is σ = 125580000. Its totient is φ = 56078784.

The previous prime is 85522109. The next prime is 85522117. The reversal of 85522113 is 31122558.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85522109) and next prime (85522117).

It is not a de Polignac number, because 85522113 - 2² = 85522109 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85522117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171138 + ... + 171636.

It is an arithmetic number, because the mean of its divisors is an integer number (5232500).

Almost surely, 2^85522113 is an apocalyptic number.

It is an amenable number.

85522113 is a deficient number, since it is larger than the sum of its proper divisors (40057887).

85522113 is a wasteful number, since it uses less digits than its factorization.

85522113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 778 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 85522113 is about 9247.8166612450. The cubic root of 85522113 is about 440.5813819506.

The spelling of 85522113 in words is "eighty-five million, five hundred twenty-two thousand, one hundred thirteen".