20752307 has 2 divisors, whose sum is σ = 20752308. Its totient is φ = 20752306.

The previous prime is 20752297. The next prime is 20752327. The reversal of 20752307 is 70325702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20752307 - 2⁶ = 20752243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20752327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10376153 + 10376154.

It is an arithmetic number, because the mean of its divisors is an integer number (10376154).

Almost surely, 2^20752307 is an apocalyptic number.

20752307 is a deficient number, since it is larger than the sum of its proper divisors (1).

20752307 is an equidigital number, since it uses as much as digits as its factorization.

20752307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20752307 is about 4555.4700086819. The cubic root of 20752307 is about 274.8034165308.

The spelling of 20752307 in words is "twenty million, seven hundred fifty-two thousand, three hundred seven".