85705552 has 20 divisors (see below), whose sum is σ = 166680180. Its totient is φ = 42691328.

The previous prime is 85705547. The next prime is 85705603. The reversal of 85705552 is 25550758.

It can be written as a sum of positive squares in 2 ways, for example, as 3549456 + 82156096 = 1884^2 + 9064^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5653 + ... + 14260.

It is an arithmetic number, because the mean of its divisors is an integer number (8334009).

Almost surely, 2^85705552 is an apocalyptic number.

It is an amenable number.

85705552 is a deficient number, since it is larger than the sum of its proper divisors (80974628).

85705552 is a wasteful number, since it uses less digits than its factorization.

85705552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20190 (or 20184 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 85705552 is about 9257.7293112296. The cubic root of 85705552 is about 440.8961624979.

The spelling of 85705552 in words is "eighty-five million, seven hundred five thousand, five hundred fifty-two".