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50578225 = 529720857
BaseRepresentation
bin1100000011110…
…0001100110001
310112011122021121
43000330030301
5100422000400
65004022241
71152623245
oct300741461
9115148247
1050578225
1126606195
1214b31981
13a62b659
146a08425
15469121a
hex303c331

50578225 has 12 divisors (see below), whose sum is σ = 63366604. Its totient is φ = 40043520.

The previous prime is 50578207. The next prime is 50578237. The reversal of 50578225 is 52287505.

It can be written as a sum of positive squares in 6 ways, for example, as 1115136 + 49463089 = 1056^2 + 7033^2 .

It is not a de Polignac number, because 50578225 - 219 = 50053937 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 8004 + ... + 12853.

Almost surely, 250578225 is an apocalyptic number.

It is an amenable number.

50578225 is a deficient number, since it is larger than the sum of its proper divisors (12788379).

50578225 is a wasteful number, since it uses less digits than its factorization.

50578225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20964 (or 20959 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 50578225 is about 7111.8369638231. The cubic root of 50578225 is about 369.8178431337.

The spelling of 50578225 in words is "fifty million, five hundred seventy-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 97 485 2425 20857 104285 521425 2023129 10115645 50578225