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50280505553 = 293171605821
BaseRepresentation
bin101110110100111100…
…111010000011010001
311210210010122022220102
4232310330322003101
51310433302134203
635033141422145
73426666150125
oct566474720321
9153703568812
1050280505553
111a362042023
1298b2a0a955
134983c03545
14260daab585
151494302888
hexbb4f3a0d1

50280505553 has 4 divisors (see below), whose sum is σ = 50452111668. Its totient is φ = 50108899440.

The previous prime is 50280505531. The next prime is 50280505567. The reversal of 50280505553 is 35550508205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31190385664 + 19090119889 = 176608^2 + 138167^2 .

It is a cyclic number.

It is not a de Polignac number, because 50280505553 - 224 = 50263728337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50280505453) 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 3 ways as a sum of consecutive naturals, for example, 85802618 + ... + 85803203.

It is an arithmetic number, because the mean of its divisors is an integer number (12613027917).

Almost surely, 250280505553 is an apocalyptic number.

It is an amenable number.

50280505553 is a deficient number, since it is larger than the sum of its proper divisors (171606115).

50280505553 is a wasteful number, since it uses less digits than its factorization.

50280505553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171606114.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 50280505553 in words is "fifty billion, two hundred eighty million, five hundred five thousand, five hundred fifty-three".

Divisors: 1 293 171605821 50280505553