85875206550 has 96 divisors (see below), whose sum is σ = 243620812032. Its totient is φ = 19610398080.

The previous prime is 85875206533. The next prime is 85875206579. The reversal of 85875206550 is 5560257858.

It is a super-2 number, since 2×85875206550² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85875206493 and 85875206502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1110237 + ... + 1185063.

It is an arithmetic number, because the mean of its divisors is an integer number (2537716792).

Almost surely, 2^85875206550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85875206550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121810406016).

85875206550 is an abundant number, since it is smaller than the sum of its proper divisors (157745605482).

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

85875206550 is a wasteful number, since it uses less digits than its factorization.

85875206550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75942 (or 75937 counting only the distinct ones).

The product of its (nonzero) digits is 3360000, while the sum is 51.

The spelling of 85875206550 in words is "eighty-five billion, eight hundred seventy-five million, two hundred six thousand, five hundred fifty".