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550525 = 5219261
BaseRepresentation
bin10000110011001111101
31000222011211
42012121331
5120104100
615444421
74452013
oct2063175
91028154
10550525
11346688
12226711
13163771
141048b3
15ad1ba
hex8667d

550525 has 18 divisors (see below), whose sum is σ = 732282. Its totient is φ = 410400.

The previous prime is 550519. The next prime is 550531. The reversal of 550525 is 525055.

It is an interprime number because it is at equal distance from previous prime (550519) and next prime (550531).

It can be written as a sum of positive squares in 3 ways, for example, as 1444 + 549081 = 38^2 + 741^2 .

It is not a de Polignac number, because 550525 - 219 = 26237 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 550496 and 550505.

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 17 ways as a sum of consecutive naturals, for example, 8995 + ... + 9055.

2550525 is an apocalyptic number.

It is an amenable number.

550525 is a deficient number, since it is larger than the sum of its proper divisors (181757).

550525 is a wasteful number, since it uses less digits than its factorization.

550525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 550525 is about 741.9737192111. The cubic root of 550525 is about 81.9581880828.

Adding to 550525 its product of nonzero digits (1250), we get a triangular number (551775 = T1050).

The spelling of 550525 in words is "five hundred fifty thousand, five hundred twenty-five".

Divisors: 1 5 19 25 61 95 305 361 475 1159 1525 1805 5795 9025 22021 28975 110105 550525