85522663 has 4 divisors (see below), whose sum is σ = 85563688. Its totient is φ = 85481640.

The previous prime is 85522643. The next prime is 85522673. The reversal of 85522663 is 36622558.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85522663 is a prime.

It is a super-2 number, since 2×85522663² = 14628251773223138, 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 (85522643) 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, 17208 + ... + 21613.

It is an arithmetic number, because the mean of its divisors is an integer number (21390922).

Almost surely, 2^85522663 is an apocalyptic number.

85522663 is a deficient number, since it is larger than the sum of its proper divisors (41025).

85522663 is a wasteful number, since it uses less digits than its factorization.

85522663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41024.

The product of its digits is 86400, while the sum is 37.

The square root of 85522663 is about 9247.8463979458. The cubic root of 85522663 is about 440.5823264207.

The spelling of 85522663 in words is "eighty-five million, five hundred twenty-two thousand, six hundred sixty-three".