85549574 has 16 divisors (see below), whose sum is σ = 141765120. Its totient is φ = 38393160.

The previous prime is 85549573. The next prime is 85549577. The reversal of 85549574 is 47594558.

It is a happy number.

It is a super-2 number, since 2×85549574² = 14637459223162952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85549573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22874 + ... + 26349.

It is an arithmetic number, because the mean of its divisors is an integer number (8860320).

Almost surely, 2^85549574 is an apocalyptic number.

85549574 is a deficient number, since it is larger than the sum of its proper divisors (56215546).

85549574 is a wasteful number, since it uses less digits than its factorization.

85549574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49315.

The product of its digits is 1008000, while the sum is 47.

The square root of 85549574 is about 9249.3012709069. The cubic root of 85549574 is about 440.6285335397.

The spelling of 85549574 in words is "eighty-five million, five hundred forty-nine thousand, five hundred seventy-four".