85805530 has 8 divisors (see below), whose sum is σ = 154449972. Its totient is φ = 34322208.

The previous prime is 85805527. The next prime is 85805543. The reversal of 85805530 is 3550858.

It can be written as a sum of positive squares in 2 ways, for example, as 70509609 + 15295921 = 8397^2 + 3911^2 .

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, 4290267 + ... + 4290286.

Almost surely, 2^85805530 is an apocalyptic number.

85805530 is a deficient number, since it is larger than the sum of its proper divisors (68644442).

85805530 is a wasteful number, since it uses less digits than its factorization.

85805530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580560.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 85805530 is about 9263.1274416365. The cubic root of 85805530 is about 441.0675352442.

The spelling of 85805530 in words is "eighty-five million, eight hundred five thousand, five hundred thirty".