55321627 has 2 divisors, whose sum is σ = 55321628. Its totient is φ = 55321626.

The previous prime is 55321579. The next prime is 55321631. The reversal of 55321627 is 72612355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55321627 - 2⁷ = 55321499 is a prime.

It is not a weakly prime, because it can be changed into another prime (55321667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27660813 + 27660814.

It is an arithmetic number, because the mean of its divisors is an integer number (27660814).

Almost surely, 2^55321627 is an apocalyptic number.

55321627 is a deficient number, since it is larger than the sum of its proper divisors (1).

55321627 is an equidigital number, since it uses as much as digits as its factorization.

55321627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 55321627 is about 7437.8509665091. The cubic root of 55321627 is about 381.0350980220.

The spelling of 55321627 in words is "fifty-five million, three hundred twenty-one thousand, six hundred twenty-seven".