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550050057 = 32193216667
BaseRepresentation
bin100000110010010…
…001100100001001
31102100000102211100
4200302101210021
52111303100212
6130325252013
716426230324
oct4062214411
91370012740
10550050057
11262541827
12134264009
1389c5a20b
14530a37bb
1533452bdc
hex20c91909

550050057 has 12 divisors (see below), whose sum is σ = 836333680. Its totient is φ = 347399928.

The previous prime is 550050049. The next prime is 550050073. The reversal of 550050057 is 750050055.

It is not a de Polignac number, because 550050057 - 23 = 550050049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550050057.

It is not an unprimeable number, because it can be changed into a prime (550050077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1608163 + ... + 1608504.

Almost surely, 2550050057 is an apocalyptic number.

550050057 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

550050057 is a deficient number, since it is larger than the sum of its proper divisors (286283623).

550050057 is a wasteful number, since it uses less digits than its factorization.

550050057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216692 (or 3216689 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 27.

The square root of 550050057 is about 23453.1459936615. The cubic root of 550050057 is about 819.3461260677.

The spelling of 550050057 in words is "five hundred fifty million, fifty thousand, fifty-seven".

Divisors: 1 3 9 19 57 171 3216667 9650001 28950003 61116673 183350019 550050057