551023255152 has 120 divisors (see below), whose sum is σ = 1639943407440. Its totient is φ = 172114974720.

The previous prime is 551023255151. The next prime is 551023255171. The reversal of 551023255152 is 251552320155.

551023255152 is a `hidden beast` number, since 5 + 5 + 102 + 32 + 5 + 515 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551023255151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69127 + ... + 1052057.

It is an arithmetic number, because the mean of its divisors is an integer number (13666195062).

Almost surely, 2^551023255152 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 551023255152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819971703720).

551023255152 is an abundant number, since it is smaller than the sum of its proper divisors (1088920152288).

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

551023255152 is a wasteful number, since it uses less digits than its factorization.

551023255152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983191 (or 983182 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 551023255152 in words is "five hundred fifty-one billion, twenty-three million, two hundred fifty-five thousand, one hundred fifty-two".