551303504928 has 144 divisors (see below), whose sum is σ = 1710791409600. Its totient is φ = 167013066240.

The previous prime is 551303504903. The next prime is 551303505013. The reversal of 551303504928 is 829405303155.

551303504928 is a `hidden beast` number, since 5 + 5 + 130 + 3 + 504 + 9 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11726653 + ... + 11773571.

It is an arithmetic number, because the mean of its divisors is an integer number (11880495900).

Almost surely, 2^551303504928 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 551303504928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (855395704800).

551303504928 is an abundant number, since it is smaller than the sum of its proper divisors (1159487904672).

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

551303504928 is a wasteful number, since it uses less digits than its factorization.

551303504928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50655 (or 50644 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 551303504928 in words is "five hundred fifty-one billion, three hundred three million, five hundred four thousand, nine hundred twenty-eight".