55427397241 has 2 divisors, whose sum is σ = 55427397242. Its totient is φ = 55427397240.

The previous prime is 55427397203. The next prime is 55427397247. The reversal of 55427397241 is 14279372455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51610752400 + 3816644841 = 227180^2 + 61779^2 .

It is a cyclic number.

It is not a de Polignac number, because 55427397241 - 2¹¹ = 55427395193 is a prime.

It is a super-2 number, since 2×55427397241² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55427397247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27713698620 + 27713698621.

It is an arithmetic number, because the mean of its divisors is an integer number (27713698621).

Almost surely, 2^55427397241 is an apocalyptic number.

It is an amenable number.

55427397241 is a deficient number, since it is larger than the sum of its proper divisors (1).

55427397241 is an equidigital number, since it uses as much as digits as its factorization.

55427397241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 49.

The spelling of 55427397241 in words is "fifty-five billion, four hundred twenty-seven million, three hundred ninety-seven thousand, two hundred forty-one".