85905530 has 8 divisors (see below), whose sum is σ = 154629972. Its totient is φ = 34362208.

The previous prime is 85905509. The next prime is 85905551. The reversal of 85905530 is 3550958.

It is an interprime number because it is at equal distance from previous prime (85905509) and next prime (85905551).

It can be written as a sum of positive squares in 2 ways, for example, as 68873401 + 17032129 = 8299^2 + 4127^2 .

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, 4295267 + ... + 4295286.

Almost surely, 2^85905530 is an apocalyptic number.

85905530 is a deficient number, since it is larger than the sum of its proper divisors (68724442).

85905530 is a wasteful number, since it uses less digits than its factorization.

85905530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590560.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 85905530 is about 9268.5236149022. The cubic root of 85905530 is about 441.2388125897.

The spelling of 85905530 in words is "eighty-five million, nine hundred five thousand, five hundred thirty".