2172505603 has 2 divisors, whose sum is σ = 2172505604. Its totient is φ = 2172505602.

The previous prime is 2172505597. The next prime is 2172505607. The reversal of 2172505603 is 3065052712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2172505603 - 2⁵ = 2172505571 is a prime.

It is not a weakly prime, because it can be changed into another prime (2172505607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086252801 + 1086252802.

It is an arithmetic number, because the mean of its divisors is an integer number (1086252802).

Almost surely, 2^2172505603 is an apocalyptic number.

2172505603 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172505603 is an equidigital number, since it uses as much as digits as its factorization.

2172505603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 2172505603 is about 46610.1448506653. The cubic root of 2172505603 is about 1295.1506914082.

The spelling of 2172505603 in words is "two billion, one hundred seventy-two million, five hundred five thousand, six hundred three".