20013025469 has 2 divisors, whose sum is σ = 20013025470. Its totient is φ = 20013025468.

The previous prime is 20013025453. The next prime is 20013025499. The reversal of 20013025469 is 96452031002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19366340569 + 646684900 = 139163^2 + 25430^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013025469 - 2⁴ = 20013025453 is a prime.

It is a super-2 number, since 2×20013025469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013025499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006512734 + 10006512735.

It is an arithmetic number, because the mean of its divisors is an integer number (10006512735).

Almost surely, 2^20013025469 is an apocalyptic number.

It is an amenable number.

20013025469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013025469 is an equidigital number, since it uses as much as digits as its factorization.

20013025469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20013025469 in words is "twenty billion, thirteen million, twenty-five thousand, four hundred sixty-nine".