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50158225 = 5213154333
BaseRepresentation
bin1011111101010…
…1101010010001
310111101022011001
42333111222101
5100320030400
64551022001
71146223615
oct277255221
9114338131
1050158225
1126349687
121496a901
13a512430
146939345
15460ba6a
hex2fd5a91

50158225 has 12 divisors (see below), whose sum is σ = 66980956. Its totient is φ = 37039680.

The previous prime is 50158223. The next prime is 50158249. The reversal of 50158225 is 52285105.

It can be written as a sum of positive squares in 6 ways, for example, as 2396304 + 47761921 = 1548^2 + 6911^2 .

It is not a de Polignac number, because 50158225 - 21 = 50158223 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50158193 and 50158202.

It is not an unprimeable number, because it can be changed into a prime (50158223) 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, 76842 + ... + 77491.

Almost surely, 250158225 is an apocalyptic number.

It is an amenable number.

50158225 is a deficient number, since it is larger than the sum of its proper divisors (16822731).

50158225 is a wasteful number, since it uses less digits than its factorization.

50158225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154356 (or 154351 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 50158225 is about 7082.2471716257. The cubic root of 50158225 is about 368.7913445934.

The spelling of 50158225 in words is "fifty million, one hundred fifty-eight thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 154333 771665 2006329 3858325 10031645 50158225