551017272 has 64 divisors (see below), whose sum is σ = 1486104480. Its totient is φ = 169247232.

The previous prime is 551017261. The next prime is 551017289. The reversal of 551017272 is 272710155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235018 + ... + 237350.

Almost surely, 2^551017272 is an apocalyptic number.

551017272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551017272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743052240).

551017272 is an abundant number, since it is smaller than the sum of its proper divisors (935087208).

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

551017272 is a wasteful number, since it uses less digits than its factorization.

551017272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 551017272 is about 23473.7570916971. The cubic root of 551017272 is about 819.8260943918.

The spelling of 551017272 in words is "five hundred fifty-one million, seventeen thousand, two hundred seventy-two".