551227431456 has 576 divisors, whose sum is σ = 1835829515520. Its totient is φ = 155579719680.

The previous prime is 551227431451. The next prime is 551227431523. The reversal of 551227431456 is 654134722155.

551227431456 is a `hidden beast` number, since 5 + 5 + 12 + 274 + 314 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (551227431451) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 172742821 + ... + 172746011.

It is an arithmetic number, because the mean of its divisors is an integer number (3187204020).

Almost surely, 2^551227431456 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 551227431456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917914757760).

551227431456 is an abundant number, since it is smaller than the sum of its proper divisors (1284602084064).

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

551227431456 is a wasteful number, since it uses less digits than its factorization.

551227431456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329 (or 3318 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 551227431456 in words is "five hundred fifty-one billion, two hundred twenty-seven million, four hundred thirty-one thousand, four hundred fifty-six".