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50251225 = 524742767
BaseRepresentation
bin1011111110110…
…0010111011001
310111120000201111
42333230113121
5100331014400
64553020321
71150062013
oct277542731
9114500644
1050251225
1126402542
12149b46a1
13a54586b
1469611b3
1546293ba
hex2fec5d9

50251225 has 12 divisors (see below), whose sum is σ = 63638784. Its totient is φ = 39344720.

The previous prime is 50251177. The next prime is 50251277. The reversal of 50251225 is 52215205.

It is a de Polignac number, because none of the positive numbers 2k-50251225 is a prime.

It is a super-2 number, since 2×502512252 = 5050371228001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50251196 and 50251205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20209 + ... + 22558.

It is an arithmetic number, because the mean of its divisors is an integer number (5303232).

Almost surely, 250251225 is an apocalyptic number.

It is an amenable number.

50251225 is a deficient number, since it is larger than the sum of its proper divisors (13387559).

50251225 is a wasteful number, since it uses less digits than its factorization.

50251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42824 (or 42819 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 50251225 is about 7088.8098436903. The cubic root of 50251225 is about 369.0191332191.

The spelling of 50251225 in words is "fifty million, two hundred fifty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 47 235 1175 42767 213835 1069175 2010049 10050245 50251225