85515542 has 32 divisors (see below), whose sum is σ = 163399680. Its totient is φ = 32676480.

The previous prime is 85515527. The next prime is 85515569. The reversal of 85515542 is 24551558.

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 in 15 ways as a sum of consecutive naturals, for example, 4934 + ... + 13977.

It is an arithmetic number, because the mean of its divisors is an integer number (5106240).

Almost surely, 2^85515542 is an apocalyptic number.

85515542 is a deficient number, since it is larger than the sum of its proper divisors (77884138).

85515542 is a wasteful number, since it uses less digits than its factorization.

85515542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18956.

The product of its digits is 40000, while the sum is 35.

The square root of 85515542 is about 9247.4613813738. The cubic root of 85515542 is about 440.5700977953.

The spelling of 85515542 in words is "eighty-five million, five hundred fifteen thousand, five hundred forty-two".