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551268960 = 253511131797
BaseRepresentation
bin100000110110111…
…011001001100000
31102102022100211220
4200312323021200
52112111101320
6130411335040
716442465064
oct4066731140
91372270756
10551268960
112631a4590
12134751480
138a295c68
14532ddaa4
15335e3e40
hex20dbb260

551268960 has 192 divisors, whose sum is σ = 1911216384. Its totient is φ = 132454400.

The previous prime is 551268947. The next prime is 551268989. The reversal of 551268960 is 69862155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691282 + ... + 692078.

It is an arithmetic number, because the mean of its divisors is an integer number (9954252).

Almost surely, 2551268960 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 551268960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955608192).

551268960 is an abundant number, since it is smaller than the sum of its proper divisors (1359947424).

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

551268960 is a wasteful number, since it uses less digits than its factorization.

551268960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 551268960 is about 23479.1175302651. The cubic root of 551268960 is about 819.9508993007.

The spelling of 551268960 in words is "five hundred fifty-one million, two hundred sixty-eight thousand, nine hundred sixty".