20267025029 has 2 divisors, whose sum is σ = 20267025030. Its totient is φ = 20267025028.

The previous prime is 20267025011. The next prime is 20267025139. The reversal of 20267025029 is 92052076202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16453962529 + 3813062500 = 128273^2 + 61750^2 .

It is a cyclic number.

It is not a de Polignac number, because 20267025029 - 2²⁴ = 20250247813 is a prime.

It is a super-2 number, since 2×20267025029² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20267025029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20267025929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133512514 + 10133512515.

It is an arithmetic number, because the mean of its divisors is an integer number (10133512515).

Almost surely, 2^20267025029 is an apocalyptic number.

It is an amenable number.

20267025029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20267025029 is an equidigital number, since it uses as much as digits as its factorization.

20267025029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 20267025029 in words is "twenty billion, two hundred sixty-seven million, twenty-five thousand, twenty-nine".