85564538 has 8 divisors (see below), whose sum is σ = 128386080. Its totient is φ = 42769180.

The previous prime is 85564489. The next prime is 85564559. The reversal of 85564538 is 83546558.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9233 + ... + 16011.

It is an arithmetic number, because the mean of its divisors is an integer number (16048260).

Almost surely, 2^85564538 is an apocalyptic number.

85564538 is a deficient number, since it is larger than the sum of its proper divisors (42821542).

85564538 is a wasteful number, since it uses less digits than its factorization.

85564538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13092.

The product of its digits is 576000, while the sum is 44.

The square root of 85564538 is about 9250.1101615062. The cubic root of 85564538 is about 440.6542230539.

The spelling of 85564538 in words is "eighty-five million, five hundred sixty-four thousand, five hundred thirty-eight".