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550055597 = 71319331319
BaseRepresentation
bin100000110010010…
…010111010101101
31102100000201102112
4200302102322231
52111303234342
6130325333405
716426252430
oct4062227255
91370021375
10550055597
11262545a03
12134267265
1389c5c8b0
14530a5817
1533454682
hex20c92ead

550055597 has 16 divisors (see below), whose sum is σ = 680520960. Its totient is φ = 432940032.

The previous prime is 550055581. The next prime is 550055609. The reversal of 550055597 is 795550055.

It is not a de Polignac number, because 550055597 - 24 = 550055581 is a prime.

It is a super-2 number, since 2×5500555972 = 605122319582052818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550055197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1904 + ... + 33222.

It is an arithmetic number, because the mean of its divisors is an integer number (42532560).

Almost surely, 2550055597 is an apocalyptic number.

It is an amenable number.

550055597 is a deficient number, since it is larger than the sum of its proper divisors (130465363).

550055597 is a wasteful number, since it uses less digits than its factorization.

550055597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31532.

The product of its (nonzero) digits is 196875, while the sum is 41.

The square root of 550055597 is about 23453.2641011864. The cubic root of 550055597 is about 819.3488768248.

The spelling of 550055597 in words is "five hundred fifty million, fifty-five thousand, five hundred ninety-seven".

Divisors: 1 7 13 91 193 1351 2509 17563 31319 219233 407147 2850029 6044567 42311969 78579371 550055597