85553820552 has 64 divisors (see below), whose sum is σ = 214449842880. Its totient is φ = 28442679552.

The previous prime is 85553820529. The next prime is 85553820581. The reversal of 85553820552 is 25502835558.

It is a super-2 number, since 2×85553820552² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16039678 + ... + 16045010.

It is an arithmetic number, because the mean of its divisors is an integer number (3350778795).

Almost surely, 2^85553820552 is an apocalyptic number.

It is an amenable number.

85553820552 is an abundant number, since it is smaller than the sum of its proper divisors (128896022328).

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

85553820552 is a wasteful number, since it uses less digits than its factorization.

85553820552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982 (or 6978 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 48.

The spelling of 85553820552 in words is "eighty-five billion, five hundred fifty-three million, eight hundred twenty thousand, five hundred fifty-two".