85522144 has 12 divisors (see below), whose sum is σ = 168371784. Its totient is φ = 42761056.

The previous prime is 85522117. The next prime is 85522153. The reversal of 85522144 is 44122558.

It is a super-2 number, since 2×85522144² = 14628074228713472, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1336252 + ... + 1336315.

It is an arithmetic number, because the mean of its divisors is an integer number (14030982).

Almost surely, 2^85522144 is an apocalyptic number.

It is an amenable number.

85522144 is a deficient number, since it is larger than the sum of its proper divisors (82849640).

85522144 is a wasteful number, since it uses less digits than its factorization.

85522144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672577 (or 2672569 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 85522144 is about 9247.8183373161. The cubic root of 85522144 is about 440.5814351845.

It can be divided in two parts, 8552214 and 4, that multiplied together give a triangular number (34208856 = T₈₂₇₁).

The spelling of 85522144 in words is "eighty-five million, five hundred twenty-two thousand, one hundred forty-four".