Search a number
-
+
55342464169 is a prime number
BaseRepresentation
bin110011100010101010…
…101111110010101001
312021211220121110201011
4303202222233302221
51401320132323134
641231325023521
73666303120016
oct634252576251
9167756543634
1055342464169
112151a4184a3
12a8860b4ba1
1352ac846725
14297009a70d
15168d8e7264
hexce2aafca9

55342464169 has 2 divisors, whose sum is σ = 55342464170. Its totient is φ = 55342464168.

The previous prime is 55342464127. The next prime is 55342464197. The reversal of 55342464169 is 96146424355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54481628569 + 860835600 = 233413^2 + 29340^2 .

It is a cyclic number.

It is not a de Polignac number, because 55342464169 - 213 = 55342455977 is a prime.

It is a super-2 number, since 2×553424641692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55342464119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27671232084 + 27671232085.

It is an arithmetic number, because the mean of its divisors is an integer number (27671232085).

Almost surely, 255342464169 is an apocalyptic number.

It is an amenable number.

55342464169 is a deficient number, since it is larger than the sum of its proper divisors (1).

55342464169 is an equidigital number, since it uses as much as digits as its factorization.

55342464169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 49.

The spelling of 55342464169 in words is "fifty-five billion, three hundred forty-two million, four hundred sixty-four thousand, one hundred sixty-nine".