55315427 has 2 divisors, whose sum is σ = 55315428. Its totient is φ = 55315426.

The previous prime is 55315423. The next prime is 55315451. The reversal of 55315427 is 72451355.

55315427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55315427 - 2² = 55315423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55315393 and 55315402.

It is not a weakly prime, because it can be changed into another prime (55315423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27657713 + 27657714.

It is an arithmetic number, because the mean of its divisors is an integer number (27657714).

Almost surely, 2^55315427 is an apocalyptic number.

55315427 is a deficient number, since it is larger than the sum of its proper divisors (1).

55315427 is an equidigital number, since it uses as much as digits as its factorization.

55315427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 32.

The square root of 55315427 is about 7437.4341677759. The cubic root of 55315427 is about 381.0208630474.

The spelling of 55315427 in words is "fifty-five million, three hundred fifteen thousand, four hundred twenty-seven".