20725303 has 2 divisors, whose sum is σ = 20725304. Its totient is φ = 20725302.

The previous prime is 20725297. The next prime is 20725307. The reversal of 20725303 is 30352702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20725303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20725307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10362651 + 10362652.

It is an arithmetic number, because the mean of its divisors is an integer number (10362652).

Almost surely, 2^20725303 is an apocalyptic number.

20725303 is a deficient number, since it is larger than the sum of its proper divisors (1).

20725303 is an equidigital number, since it uses as much as digits as its factorization.

20725303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 20725303 is about 4552.5051345386. The cubic root of 20725303 is about 274.6841685428.

The spelling of 20725303 in words is "twenty million, seven hundred twenty-five thousand, three hundred three".