55113251 has 2 divisors, whose sum is σ = 55113252. Its totient is φ = 55113250.

The previous prime is 55113211. The next prime is 55113259. The reversal of 55113251 is 15231155.

It is a happy number.

55113251 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 a de Polignac number, because none of the positive numbers 2^k-55113251 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55113259) 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, 27556625 + 27556626.

It is an arithmetic number, because the mean of its divisors is an integer number (27556626).

Almost surely, 2^55113251 is an apocalyptic number.

55113251 is a deficient number, since it is larger than the sum of its proper divisors (1).

55113251 is an equidigital number, since it uses as much as digits as its factorization.

55113251 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 55113251 is about 7423.8299414790. The cubic root of 55113251 is about 380.5560902552.

The spelling of 55113251 in words is "fifty-five million, one hundred thirteen thousand, two hundred fifty-one".