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55050015015 = 345135925963
BaseRepresentation
bin110011010001001111…
…001001000100100111
312021002112022111220000
4303101033021010213
51400220300440030
641142320512343
73656122256412
oct632117110447
9167075274800
1055050015015
112138a331086
12a80417b6b3
1352640907a8
1429432d0b79
151672dca860
hexcd13c9127

55050015015 has 20 divisors (see below), whose sum is σ = 98682249864. Its totient is φ = 29360007792.

The previous prime is 55050015011. The next prime is 55050015017. The reversal of 55050015015 is 51051005055.

55050015015 is a `hidden beast` number, since 5 + 5 + 0 + 500 + 150 + 1 + 5 = 666.

It is not a de Polignac number, because 55050015015 - 22 = 55050015011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 55050015015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050015011) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 67962577 + ... + 67963386.

Almost surely, 255050015015 is an apocalyptic number.

55050015015 is a deficient number, since it is larger than the sum of its proper divisors (43632234849).

55050015015 is a wasteful number, since it uses less digits than its factorization.

55050015015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135925980 (or 135925971 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The spelling of 55050015015 in words is "fifty-five billion, fifty million, fifteen thousand, fifteen".

Divisors: 1 3 5 9 15 27 45 81 135 405 135925963 407777889 679629815 1223333667 2038889445 3670001001 6116668335 11010003003 18350005005 55050015015