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55122056715 = 3511334073071
BaseRepresentation
bin110011010101100001…
…111101011000001011
312021021112212121112010
4303111201331120023
51400342221303330
641153412551003
73660655515465
oct632541753013
9167245777463
1055122056715
1121416a67080
12a824322463
135275c9570b
14294cac5135
1516793ab3b0
hexcd587d60b

55122056715 has 16 divisors (see below), whose sum is σ = 96213044736. Its totient is φ = 26725845600.

The previous prime is 55122056681. The next prime is 55122056719. The reversal of 55122056715 is 51765022155.

It is not a de Polignac number, because 55122056715 - 213 = 55122048523 is a prime.

It is a super-2 number, since 2×551220567152 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55122056719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167036371 + ... + 167036700.

It is an arithmetic number, because the mean of its divisors is an integer number (6013315296).

Almost surely, 255122056715 is an apocalyptic number.

55122056715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55122056715 is a deficient number, since it is larger than the sum of its proper divisors (41090988021).

55122056715 is a wasteful number, since it uses less digits than its factorization.

55122056715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334073090.

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 55122056715 in words is "fifty-five billion, one hundred twenty-two million, fifty-six thousand, seven hundred fifteen".

Divisors: 1 3 5 11 15 33 55 165 334073071 1002219213 1670365355 3674803781 5011096065 11024411343 18374018905 55122056715