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50257052757 = 3217328477469
BaseRepresentation
bin101110110011100011…
…011100010001010101
311210201111111210201100
4232303203130101111
51310411301142012
635030543020313
73426262620462
oct566343342125
9153644453640
1050257052757
111a34a88364a
1298a6b9a699
13497c0b1652
14260a924669
15149221d8dc
hexbb38dc455

50257052757 has 12 divisors (see below), whose sum is σ = 76863727980. Its totient is φ = 31533836928.

The previous prime is 50257052749. The next prime is 50257052789. The reversal of 50257052757 is 75725075205.

50257052757 is a `hidden beast` number, since 5 + 0 + 2 + 5 + 70 + 527 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43399722276 + 6857330481 = 208326^2 + 82809^2 .

It is not a de Polignac number, because 50257052757 - 23 = 50257052749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50257052707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164238582 + ... + 164238887.

It is an arithmetic number, because the mean of its divisors is an integer number (6405310665).

Almost surely, 250257052757 is an apocalyptic number.

It is an amenable number.

50257052757 is a deficient number, since it is larger than the sum of its proper divisors (26606675223).

50257052757 is a wasteful number, since it uses less digits than its factorization.

50257052757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328477492 (or 328477489 counting only the distinct ones).

The product of its (nonzero) digits is 857500, while the sum is 45.

The spelling of 50257052757 in words is "fifty billion, two hundred fifty-seven million, fifty-two thousand, seven hundred fifty-seven".

Divisors: 1 3 9 17 51 153 328477469 985432407 2956297221 5584116973 16752350919 50257052757