56243251 has 2 divisors, whose sum is σ = 56243252. Its totient is φ = 56243250.

The previous prime is 56243149. The next prime is 56243279. The reversal of 56243251 is 15234265.

56243251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (56243279) can be obtained adding 56243251 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56243251 - 2¹³ = 56235059 is a prime.

It is not a weakly prime, because it can be changed into another prime (56243051) 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, 28121625 + 28121626.

It is an arithmetic number, because the mean of its divisors is an integer number (28121626).

Almost surely, 2^56243251 is an apocalyptic number.

56243251 is a deficient number, since it is larger than the sum of its proper divisors (1).

56243251 is an equidigital number, since it uses as much as digits as its factorization.

56243251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 56243251 is about 7499.5500531699. The cubic root of 56243251 is about 383.1393916658.

The spelling of 56243251 in words is "fifty-six million, two hundred forty-three thousand, two hundred fifty-one".