56247403 has 2 divisors, whose sum is σ = 56247404. Its totient is φ = 56247402.

The previous prime is 56247383. The next prime is 56247413. The reversal of 56247403 is 30474265.

56247403 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-56247403 is a prime.

It is not a weakly prime, because it can be changed into another prime (56247413) 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, 28123701 + 28123702.

It is an arithmetic number, because the mean of its divisors is an integer number (28123702).

Almost surely, 2^56247403 is an apocalyptic number.

56247403 is a deficient number, since it is larger than the sum of its proper divisors (1).

56247403 is an equidigital number, since it uses as much as digits as its factorization.

56247403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 56247403 is about 7499.8268646683. The cubic root of 56247403 is about 383.1488194969.

The spelling of 56247403 in words is "fifty-six million, two hundred forty-seven thousand, four hundred three".