Search a number
-
+
55051055231 is a prime number
BaseRepresentation
bin110011010001010011…
…000111000001111111
312021002121021100210112
4303101103013001333
51400221032231411
641142355100235
73656134151204
oct632123070177
9167077240715
1055051055231
112138a981667
12a8045a167b
1352643660c3
1429434c1cab
151673033b8b
hexcd14c707f

55051055231 has 2 divisors, whose sum is σ = 55051055232. Its totient is φ = 55051055230.

The previous prime is 55051055203. The next prime is 55051055249. The reversal of 55051055231 is 13255015055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55051055231 - 26 = 55051055167 is a prime.

It is a super-2 number, since 2×550510552312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55051055261) 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 as a sum of consecutive naturals, namely, 27525527615 + 27525527616.

It is an arithmetic number, because the mean of its divisors is an integer number (27525527616).

Almost surely, 255051055231 is an apocalyptic number.

55051055231 is a deficient number, since it is larger than the sum of its proper divisors (1).

55051055231 is an equidigital number, since it uses as much as digits as its factorization.

55051055231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 55051055231 in words is "fifty-five billion, fifty-one million, fifty-five thousand, two hundred thirty-one".