20042527 has 2 divisors, whose sum is σ = 20042528. Its totient is φ = 20042526.

The previous prime is 20042521. The next prime is 20042551. The reversal of 20042527 is 72524002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20042527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20042498 and 20042507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20042521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021263 + 10021264.

It is an arithmetic number, because the mean of its divisors is an integer number (10021264).

Almost surely, 2^20042527 is an apocalyptic number.

20042527 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042527 is an equidigital number, since it uses as much as digits as its factorization.

20042527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20042527 is about 4476.8880933077. Note that the first 3 decimals coincide. The cubic root of 20042527 is about 271.6340188518.

Adding to 20042527 its reverse (72524002), we get a palindrome (92566529).

The spelling of 20042527 in words is "twenty million, forty-two thousand, five hundred twenty-seven".