85507503830 has 64 divisors (see below), whose sum is σ = 178249144320. Its totient is φ = 28926906624.

The previous prime is 85507503791. The next prime is 85507503833. The reversal of 85507503830 is 3830570558.

It is a super-2 number, since 2×85507503830² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85507503833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3019919 + ... + 3048101.

It is an arithmetic number, because the mean of its divisors is an integer number (2785142880).

Almost surely, 2^85507503830 is an apocalyptic number.

85507503830 is an abundant number, since it is smaller than the sum of its proper divisors (92741640490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85507503830 is a wasteful number, since it uses less digits than its factorization.

85507503830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28773.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 85507503830 in words is "eighty-five billion, five hundred seven million, five hundred three thousand, eight hundred thirty".