551923872528 has 480 divisors, whose sum is σ = 1742020313088. Its totient is φ = 147410565120.

The previous prime is 551923872469. The next prime is 551923872551. The reversal of 551923872528 is 825278329155.

It is a super-2 number, since 2×551923872528² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1763334900 + ... + 1763335212.

Almost surely, 2^551923872528 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 551923872528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871010156544).

551923872528 is an abundant number, since it is smaller than the sum of its proper divisors (1190096440560).

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

551923872528 is a wasteful number, since it uses less digits than its factorization.

551923872528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 526 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 57.

The spelling of 551923872528 in words is "five hundred fifty-one billion, nine hundred twenty-three million, eight hundred seventy-two thousand, five hundred twenty-eight".