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551315072 = 27721161131
BaseRepresentation
bin100000110111000…
…110011010000000
31102102101201002202
4200313012122000
52112114040242
6130412332332
716443046400
oct4067063200
91372351082
10551315072
112632261a0
121347740a8
138a2b0c49
1453312800
1533602932
hex20dc6680

551315072 has 192 divisors, whose sum is σ = 1427453280. Its totient is φ = 209664000.

The previous prime is 551314999. The next prime is 551315081. The reversal of 551315072 is 270513155.

It is a happy number.

It is a super-2 number, since 2×5513150722 = 607896617228730368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4208447 + ... + 4208577.

Almost surely, 2551315072 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 551315072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713726640).

551315072 is an abundant number, since it is smaller than the sum of its proper divisors (876138208).

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

551315072 is a wasteful number, since it uses less digits than its factorization.

551315072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 551315072 is about 23480.0994887160. The cubic root of 551315072 is about 819.9737608102.

The spelling of 551315072 in words is "five hundred fifty-one million, three hundred fifteen thousand, seventy-two".