85575563 has 4 divisors (see below), whose sum is σ = 90079560. Its totient is φ = 81071568.

The previous prime is 85575559. The next prime is 85575577. The reversal of 85575563 is 36557558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85575563 - 2² = 85575559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85575463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2251970 + ... + 2252007.

It is an arithmetic number, because the mean of its divisors is an integer number (22519890).

Almost surely, 2^85575563 is an apocalyptic number.

85575563 is a deficient number, since it is larger than the sum of its proper divisors (4503997).

85575563 is a wasteful number, since it uses less digits than its factorization.

85575563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503996.

The product of its digits is 630000, while the sum is 44.

The square root of 85575563 is about 9250.7060811594. The cubic root of 85575563 is about 440.6731483559.

The spelling of 85575563 in words is "eighty-five million, five hundred seventy-five thousand, five hundred sixty-three".