85610550 has 24 divisors (see below), whose sum is σ = 212314536. Its totient is φ = 22829440.

The previous prime is 85610543. The next prime is 85610597. The reversal of 85610550 is 5501658.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285219 + ... + 285518.

It is an arithmetic number, because the mean of its divisors is an integer number (8846439).

Almost surely, 2^85610550 is an apocalyptic number.

85610550 is an abundant number, since it is smaller than the sum of its proper divisors (126703986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85610550 is a wasteful number, since it uses less digits than its factorization.

85610550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570752 (or 570747 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 85610550 is about 9252.5969327535. The cubic root of 85610550 is about 440.7331956023.

The spelling of 85610550 in words is "eighty-five million, six hundred ten thousand, five hundred fifty".