20527601 has 2 divisors, whose sum is σ = 20527602. Its totient is φ = 20527600.

The previous prime is 20527571. The next prime is 20527603. The reversal of 20527601 is 10672502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17808400 + 2719201 = 4220^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 20527601 - 2¹⁴ = 20511217 is a prime.

Together with 20527603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20527603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10263800 + 10263801.

It is an arithmetic number, because the mean of its divisors is an integer number (10263801).

Almost surely, 2^20527601 is an apocalyptic number.

It is an amenable number.

20527601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20527601 is an equidigital number, since it uses as much as digits as its factorization.

20527601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20527601 is about 4530.7395643537. The cubic root of 20527601 is about 273.8079576763.

The spelling of 20527601 in words is "twenty million, five hundred twenty-seven thousand, six hundred one".