85511307530 has 16 divisors (see below), whose sum is σ = 167913113184. Its totient is φ = 31095020880.

The previous prime is 85511307499. The next prime is 85511307617. The reversal of 85511307530 is 3570311558.

It is a happy number.

It is a super-3 number, since 3×85511307530³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388687652 + ... + 388687871.

It is an arithmetic number, because the mean of its divisors is an integer number (10494569574).

Almost surely, 2^85511307530 is an apocalyptic number.

85511307530 is a deficient number, since it is larger than the sum of its proper divisors (82401805654).

85511307530 is a wasteful number, since it uses less digits than its factorization.

85511307530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777375541.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 85511307530 in words is "eighty-five billion, five hundred eleven million, three hundred seven thousand, five hundred thirty".