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55100050051 = 152873604373
BaseRepresentation
bin110011010100001110…
…000000101010000011
312021020000110120001111
4303110032000222003
51400321103100201
641151305144151
73660300461224
oct632416005203
9167200416044
1055100050051
11214055a6152
12a818a8b057
13527155bb17
142949bd724b
1516774b0b51
hexcd4380a83

55100050051 has 4 divisors (see below), whose sum is σ = 55103669712. Its totient is φ = 55096430392.

The previous prime is 55100050007. The next prime is 55100050063. The reversal of 55100050051 is 15005000155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15005000155 = 53001000031.

It is a cyclic number.

It is not a de Polignac number, because 55100050051 - 29 = 55100049539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55100050451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786900 + ... + 1817473.

It is an arithmetic number, because the mean of its divisors is an integer number (13775917428).

Almost surely, 255100050051 is an apocalyptic number.

55100050051 is a deficient number, since it is larger than the sum of its proper divisors (3619661).

55100050051 is a wasteful number, since it uses less digits than its factorization.

55100050051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619660.

The product of its (nonzero) digits is 625, while the sum is 22.

The spelling of 55100050051 in words is "fifty-five billion, one hundred million, fifty thousand, fifty-one".

Divisors: 1 15287 3604373 55100050051