55464427 has 2 divisors, whose sum is σ = 55464428. Its totient is φ = 55464426.

The previous prime is 55464391. The next prime is 55464457. The reversal of 55464427 is 72446455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55464427 - 2¹⁹ = 54940139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55464457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27732213 + 27732214.

It is an arithmetic number, because the mean of its divisors is an integer number (27732214).

Almost surely, 2^55464427 is an apocalyptic number.

55464427 is a deficient number, since it is larger than the sum of its proper divisors (1).

55464427 is an equidigital number, since it uses as much as digits as its factorization.

55464427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 37.

The square root of 55464427 is about 7447.4443267473. Note that the first 3 decimals coincide. The cubic root of 55464427 is about 381.3626676953.

The spelling of 55464427 in words is "fifty-five million, four hundred sixty-four thousand, four hundred twenty-seven".