20527214401 has 2 divisors, whose sum is σ = 20527214402. Its totient is φ = 20527214400.

The previous prime is 20527214353. The next prime is 20527214413. The reversal of 20527214401 is 10441272502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19342133776 + 1185080625 = 139076^2 + 34425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20527214401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20527214401.

It is not a weakly prime, because it can be changed into another prime (20527214431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10263607200 + 10263607201.

It is an arithmetic number, because the mean of its divisors is an integer number (10263607201).

Almost surely, 2^20527214401 is an apocalyptic number.

It is an amenable number.

20527214401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20527214401 is an equidigital number, since it uses as much as digits as its factorization.

20527214401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 28.

Adding to 20527214401 its reverse (10441272502), we get a palindrome (30968486903).

The spelling of 20527214401 in words is "twenty billion, five hundred twenty-seven million, two hundred fourteen thousand, four hundred one".