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553055551 = 4358721911
BaseRepresentation
bin100000111101101…
…111010100111111
31102112200010120221
4200331233110333
52113040234201
6130513522211
716463615566
oct4075572477
91375603527
10553055551
11264204904
12135273367
138a770209
1453646bdd
15338484a1
hex20f6f53f

553055551 has 8 divisors (see below), whose sum is σ = 566907264. Its totient is φ = 539248920.

The previous prime is 553055483. The next prime is 553055597. The reversal of 553055551 is 155550355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553055551 - 215 = 553022783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553055651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14286 + ... + 36196.

It is an arithmetic number, because the mean of its divisors is an integer number (70863408).

Almost surely, 2553055551 is an apocalyptic number.

553055551 is a deficient number, since it is larger than the sum of its proper divisors (13851713).

553055551 is a wasteful number, since it uses less digits than its factorization.

553055551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22541.

The product of its (nonzero) digits is 46875, while the sum is 34.

The square root of 553055551 is about 23517.1331373533. The cubic root of 553055551 is about 820.8357288554.

The spelling of 553055551 in words is "five hundred fifty-three million, fifty-five thousand, five hundred fifty-one".

Divisors: 1 43 587 21911 25241 942173 12861757 553055551