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50040055 = 513259219
BaseRepresentation
bin1011111011100…
…0110011110111
310111011022001101
42332320303313
5100302240210
64544310531
71145222242
oct276706367
9114138041
1050040055
112627891a
1214912447
13a4a0700
146908259
1545d6a3a
hex2fb8cf7

50040055 has 12 divisors (see below), whose sum is σ = 65023560. Its totient is φ = 36952032.

The previous prime is 50040017. The next prime is 50040059. The reversal of 50040055 is 55004005.

It is a happy number.

It is not a de Polignac number, because 50040055 - 29 = 50039543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50040059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28765 + ... + 30454.

It is an arithmetic number, because the mean of its divisors is an integer number (5418630).

Almost surely, 250040055 is an apocalyptic number.

50040055 is a deficient number, since it is larger than the sum of its proper divisors (14983505).

50040055 is a wasteful number, since it uses less digits than its factorization.

50040055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59250 (or 59237 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 50040055 is about 7073.8995610625. The cubic root of 50040055 is about 368.5014995272.

The spelling of 50040055 in words is "fifty million, forty thousand, fifty-five".

Divisors: 1 5 13 65 169 845 59219 296095 769847 3849235 10008011 50040055