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55182223769 is a prime number
BaseRepresentation
bin110011011001000111…
…011110100110011001
312021102202002102012112
4303121013132212121
51401003122130034
641203402322105
73662316106601
oct633107364631
9167382072175
1055182223769
1121447a21512
12a8404b9335
1352855a071a
142956aa7c01
15167e7e37ce
hexcd91de999

55182223769 has 2 divisors, whose sum is σ = 55182223770. Its totient is φ = 55182223768.

The previous prime is 55182223739. The next prime is 55182223799. The reversal of 55182223769 is 96732228155.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55182223739) and next prime (55182223799).

It can be written as a sum of positive squares in only one way, i.e., 49392840025 + 5789383744 = 222245^2 + 76088^2 .

It is a cyclic number.

It is not a de Polignac number, because 55182223769 - 220 = 55181175193 is a prime.

It is a super-2 number, since 2×551822237692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55182223739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27591111884 + 27591111885.

It is an arithmetic number, because the mean of its divisors is an integer number (27591111885).

Almost surely, 255182223769 is an apocalyptic number.

It is an amenable number.

55182223769 is a deficient number, since it is larger than the sum of its proper divisors (1).

55182223769 is an equidigital number, since it uses as much as digits as its factorization.

55182223769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 50.

The spelling of 55182223769 in words is "fifty-five billion, one hundred eighty-two million, two hundred twenty-three thousand, seven hundred sixty-nine".