20125907 has 2 divisors, whose sum is σ = 20125908. Its totient is φ = 20125906.

The previous prime is 20125879. The next prime is 20125979. The reversal of 20125907 is 70952102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20125907 - 2⁶ = 20125843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20125307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062953 + 10062954.

It is an arithmetic number, because the mean of its divisors is an integer number (10062954).

Almost surely, 2^20125907 is an apocalyptic number.

20125907 is a deficient number, since it is larger than the sum of its proper divisors (1).

20125907 is an equidigital number, since it uses as much as digits as its factorization.

20125907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 20125907 is about 4486.1907003604. The cubic root of 20125907 is about 272.0101774955.

The spelling of 20125907 in words is "twenty million, one hundred twenty-five thousand, nine hundred seven".