20492603 has 2 divisors, whose sum is σ = 20492604. Its totient is φ = 20492602.

The previous prime is 20492569. The next prime is 20492627. The reversal of 20492603 is 30629402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20492603 - 2¹⁴ = 20476219 is a prime.

It is not a weakly prime, because it can be changed into another prime (20492653) 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, 10246301 + 10246302.

It is an arithmetic number, because the mean of its divisors is an integer number (10246302).

Almost surely, 2^20492603 is an apocalyptic number.

20492603 is a deficient number, since it is larger than the sum of its proper divisors (1).

20492603 is an equidigital number, since it uses as much as digits as its factorization.

20492603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20492603 is about 4526.8756333701. The cubic root of 20492603 is about 273.6522619050.

The spelling of 20492603 in words is "twenty million, four hundred ninety-two thousand, six hundred three".