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55030551011 = 68380571817
BaseRepresentation
bin110011010000000100…
…111001000111100011
312021001011200122021222
4303100010321013203
51400200310113021
641140343405255
73655464652142
oct632004710743
9167034618258
1055030551011
112137a347527
12a7b975382b
135260037327
1429408a5759
1516713336ab
hexcd01391e3

55030551011 has 4 divisors (see below), whose sum is σ = 55111123512. Its totient is φ = 54949978512.

The previous prime is 55030550959. The next prime is 55030551031. The reversal of 55030551011 is 11015503055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11015503055 = 52203100611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55030551011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55030551031) 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, 40285226 + ... + 40286591.

It is an arithmetic number, because the mean of its divisors is an integer number (13777780878).

Almost surely, 255030551011 is an apocalyptic number.

55030551011 is a deficient number, since it is larger than the sum of its proper divisors (80572501).

55030551011 is an equidigital number, since it uses as much as digits as its factorization.

55030551011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80572500.

The product of its (nonzero) digits is 1875, while the sum is 26.

The spelling of 55030551011 in words is "fifty-five billion, thirty million, five hundred fifty-one thousand, eleven".

Divisors: 1 683 80571817 55030551011