55321151 has 2 divisors, whose sum is σ = 55321152. Its totient is φ = 55321150.

The previous prime is 55321129. The next prime is 55321157. The reversal of 55321151 is 15112355.

It is a happy number.

55321151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55321151 - 2⁶ = 55321087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55321157) 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, 27660575 + 27660576.

It is an arithmetic number, because the mean of its divisors is an integer number (27660576).

Almost surely, 2^55321151 is an apocalyptic number.

55321151 is a deficient number, since it is larger than the sum of its proper divisors (1).

55321151 is an equidigital number, since it uses as much as digits as its factorization.

55321151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 750, while the sum is 23.

The square root of 55321151 is about 7437.8189679502. The cubic root of 55321151 is about 381.0340051810.

The spelling of 55321151 in words is "fifty-five million, three hundred twenty-one thousand, one hundred fifty-one".