168725503 has 2 divisors, whose sum is σ = 168725504. Its totient is φ = 168725502.

The previous prime is 168725483. The next prime is 168725581. The reversal of 168725503 is 305527861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168725503 - 2²¹ = 166628351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168725203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84362751 + 84362752.

It is an arithmetic number, because the mean of its divisors is an integer number (84362752).

Almost surely, 2^168725503 is an apocalyptic number.

168725503 is a deficient number, since it is larger than the sum of its proper divisors (1).

168725503 is an equidigital number, since it uses as much as digits as its factorization.

168725503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 168725503 is about 12989.4381325753. The cubic root of 168725503 is about 552.5779834370.

The spelling of 168725503 in words is "one hundred sixty-eight million, seven hundred twenty-five thousand, five hundred three".