Search a number
-
+
55741787 is a prime number
BaseRepresentation
bin1101010010100…
…0110101011011
310212212222100122
43110220311123
5103232214122
65310423455
71244540333
oct324506533
9125788318
1055741787
11295126a2
1216801b8b
13b718a0a
1475900c3
154d61142
hex3528d5b

55741787 has 2 divisors, whose sum is σ = 55741788. Its totient is φ = 55741786.

The previous prime is 55741727. The next prime is 55741817. The reversal of 55741787 is 78714755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55741787 - 26 = 55741723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55741727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27870893 + 27870894.

It is an arithmetic number, because the mean of its divisors is an integer number (27870894).

Almost surely, 255741787 is an apocalyptic number.

55741787 is a deficient number, since it is larger than the sum of its proper divisors (1).

55741787 is an equidigital number, since it uses as much as digits as its factorization.

55741787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 274400, while the sum is 44.

The square root of 55741787 is about 7466.0422581178. The cubic root of 55741787 is about 381.9973022296.

The spelling of 55741787 in words is "fifty-five million, seven hundred forty-one thousand, seven hundred eighty-seven".