Search a number
-
+
551385050 = 25219015801
BaseRepresentation
bin100000110111010…
…111011111011010
31102102112021002112
4200313113133122
52112123310200
6130414032322
716443460406
oct4067273732
91372467075
10551385050
11263273827
121347a86a2
138a306a58
1453330106
1533618535
hex20dd77da

551385050 has 24 divisors (see below), whose sum is σ = 1026292572. Its totient is φ = 220400000.

The previous prime is 551385047. The next prime is 551385053. The reversal of 551385050 is 50583155.

It is an interprime number because it is at equal distance from previous prime (551385047) and next prime (551385053).

It can be written as a sum of positive squares in 6 ways, for example, as 242082481 + 309302569 = 15559^2 + 17587^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551384998 and 551385016.

It is not an unprimeable number, because it can be changed into a prime (551385053) 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, 92150 + ... + 97950.

Almost surely, 2551385050 is an apocalyptic number.

551385050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551385050 is a deficient number, since it is larger than the sum of its proper divisors (474907522).

551385050 is a wasteful number, since it uses less digits than its factorization.

551385050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714 (or 7709 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 551385050 is about 23481.5895969587. The cubic root of 551385050 is about 820.0084522230.

The spelling of 551385050 in words is "five hundred fifty-one million, three hundred eighty-five thousand, fifty".

Divisors: 1 2 5 10 25 50 1901 3802 5801 9505 11602 19010 29005 47525 58010 95050 145025 290050 11027701 22055402 55138505 110277010 275692525 551385050