85522351 has 16 divisors (see below), whose sum is σ = 89929728. Its totient is φ = 81259200.

The previous prime is 85522343. The next prime is 85522357. The reversal of 85522351 is 15322558.

It is a cyclic number.

It is not a de Polignac number, because 85522351 - 2³ = 85522343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85522357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447666 + ... + 447856.

It is an arithmetic number, because the mean of its divisors is an integer number (5620608).

Almost surely, 2^85522351 is an apocalyptic number.

85522351 is a deficient number, since it is larger than the sum of its proper divisors (4407377).

85522351 is a wasteful number, since it uses less digits than its factorization.

85522351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462.

The product of its digits is 12000, while the sum is 31.

The square root of 85522351 is about 9247.8295291382. The cubic root of 85522351 is about 440.5817906491.

The spelling of 85522351 in words is "eighty-five million, five hundred twenty-two thousand, three hundred fifty-one".