56403400007 has 2 divisors, whose sum is σ = 56403400008. Its totient is φ = 56403400006.

The previous prime is 56403399989. The next prime is 56403400013. The reversal of 56403400007 is 70000430465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56403400007 - 2¹² = 56403395911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56403450007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28201700003 + 28201700004.

It is an arithmetic number, because the mean of its divisors is an integer number (28201700004).

Almost surely, 2^56403400007 is an apocalyptic number.

56403400007 is a deficient number, since it is larger than the sum of its proper divisors (1).

56403400007 is an equidigital number, since it uses as much as digits as its factorization.

56403400007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

Adding to 56403400007 its sum of digits (29), we get a square (56403400036 = 237494²).

The spelling of 56403400007 in words is "fifty-six billion, four hundred three million, four hundred thousand, seven".