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54511237889 = 211258347099
BaseRepresentation
bin110010110001000111…
…110111101100000001
312012200222111210121122
4302301013313230001
51343114334103024
641013033002025
73636560606543
oct626107675401
9165628453548
1054511237889
1121133199929
12a693853315
1351a957c664
1428d1923693
151640952d5e
hexcb11f7b01

54511237889 has 4 divisors (see below), whose sum is σ = 54769585200. Its totient is φ = 54252890580.

The previous prime is 54511237873. The next prime is 54511237903. The reversal of 54511237889 is 98873211545.

54511237889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54511237889 - 24 = 54511237873 is a prime.

It is a super-2 number, since 2×545112378892 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54511237889.

It is not an unprimeable number, because it can be changed into a prime (54511237819) 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, 129173339 + ... + 129173760.

It is an arithmetic number, because the mean of its divisors is an integer number (13692396300).

Almost surely, 254511237889 is an apocalyptic number.

It is an amenable number.

54511237889 is a deficient number, since it is larger than the sum of its proper divisors (258347311).

54511237889 is a wasteful number, since it uses less digits than its factorization.

54511237889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258347310.

The product of its digits is 2419200, while the sum is 53.

The spelling of 54511237889 in words is "fifty-four billion, five hundred eleven million, two hundred thirty-seven thousand, eight hundred eighty-nine".

Divisors: 1 211 258347099 54511237889