8551083242520 has 2560 divisors, whose sum is σ = 37740216729600. Its totient is φ = 1688573952000.

The previous prime is 8551083242519. The next prime is 8551083242531. The reversal of 8551083242520 is 252423801558.

8551083242520 is a `hidden beast` number, since 8 + 5 + 5 + 1 + 0 + 83 + 2 + 42 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 54465498282 + ... + 54465498438.

It is an arithmetic number, because the mean of its divisors is an integer number (14742272160).

Almost surely, 2^{8551083242520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8551083242520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18870108364800).

8551083242520 is an abundant number, since it is smaller than the sum of its proper divisors (29189133487080).

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

8551083242520 is a wasteful number, since it uses less digits than its factorization.

8551083242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 8551083242520 in words is "eight trillion, five hundred fifty-one billion, eighty-three million, two hundred forty-two thousand, five hundred twenty".