20250577 has 2 divisors, whose sum is σ = 20250578. Its totient is φ = 20250576.

The previous prime is 20250569. The next prime is 20250647. The reversal of 20250577 is 77505202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19793601 + 456976 = 4449^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 20250577 - 2³ = 20250569 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20250677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125288 + 10125289.

It is an arithmetic number, because the mean of its divisors is an integer number (10125289).

Almost surely, 2^20250577 is an apocalyptic number.

It is an amenable number.

20250577 is a deficient number, since it is larger than the sum of its proper divisors (1).

20250577 is an equidigital number, since it uses as much as digits as its factorization.

20250577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 20250577 is about 4500.0641106544. The cubic root of 20250577 is about 272.5706777362.

Adding to 20250577 its reverse (77505202), we get a palindrome (97755779).

The spelling of 20250577 in words is "twenty million, two hundred fifty thousand, five hundred seventy-seven".