56671603 has 2 divisors, whose sum is σ = 56671604. Its totient is φ = 56671602.

The previous prime is 56671583. The next prime is 56671619. The reversal of 56671603 is 30617665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56671603 - 2¹⁷ = 56540531 is a prime.

It is not a weakly prime, because it can be changed into another prime (56671633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28335801 + 28335802.

It is an arithmetic number, because the mean of its divisors is an integer number (28335802).

Almost surely, 2^56671603 is an apocalyptic number.

56671603 is a deficient number, since it is larger than the sum of its proper divisors (1).

56671603 is an equidigital number, since it uses as much as digits as its factorization.

56671603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 56671603 is about 7528.0543967216. The cubic root of 56671603 is about 384.1096036778.

The spelling of 56671603 in words is "fifty-six million, six hundred seventy-one thousand, six hundred three".