85621522 has 12 divisors (see below), whose sum is σ = 149400990. Its totient is φ = 36694896.

The previous prime is 85621517. The next prime is 85621559. The reversal of 85621522 is 22512658.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 1147041 = 9191^2 + 1071^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 436747 + ... + 436942.

Almost surely, 2^85621522 is an apocalyptic number.

85621522 is a deficient number, since it is larger than the sum of its proper divisors (63779468).

85621522 is a wasteful number, since it uses less digits than its factorization.

85621522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873705 (or 873698 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 85621522 is about 9253.1898283781. The cubic root of 85621522 is about 440.7520231808.

The spelling of 85621522 in words is "eighty-five million, six hundred twenty-one thousand, five hundred twenty-two".