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50885557 = 833071997
BaseRepresentation
bin1100001000011…
…1001110110101
310112202020212021
43002013032311
5101011314212
65014353141
71155343252
oct302071665
9115666767
1050885557
11267a6088
121505b7b1
13a7084c8
146a88429
154702307
hex30873b5

50885557 has 8 divisors (see below), whose sum is σ = 51692256. Its totient is φ = 50083632.

The previous prime is 50885533. The next prime is 50885561. The reversal of 50885557 is 75558805.

50885557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50885557 is a prime.

It is a super-2 number, since 2×508855572 = 5178679822400498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50885567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24483 + ... + 26479.

It is an arithmetic number, because the mean of its divisors is an integer number (6461532).

Almost surely, 250885557 is an apocalyptic number.

It is an amenable number.

50885557 is a deficient number, since it is larger than the sum of its proper divisors (806699).

50885557 is a wasteful number, since it uses less digits than its factorization.

50885557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387.

The product of its (nonzero) digits is 280000, while the sum is 43.

The square root of 50885557 is about 7133.4113157731. The cubic root of 50885557 is about 370.5653810601.

The spelling of 50885557 in words is "fifty million, eight hundred eighty-five thousand, five hundred fifty-seven".

Divisors: 1 83 307 1997 25481 165751 613079 50885557