20456025229 has 2 divisors, whose sum is σ = 20456025230. Its totient is φ = 20456025228.

The previous prime is 20456025221. The next prime is 20456025263. The reversal of 20456025229 is 92252065402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17574804900 + 2881220329 = 132570^2 + 53677^2 .

It is a cyclic number.

It is not a de Polignac number, because 20456025229 - 2³ = 20456025221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20456025221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10228012614 + 10228012615.

It is an arithmetic number, because the mean of its divisors is an integer number (10228012615).

Almost surely, 2^20456025229 is an apocalyptic number.

It is an amenable number.

20456025229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20456025229 is an equidigital number, since it uses as much as digits as its factorization.

20456025229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20456025229 in words is "twenty billion, four hundred fifty-six million, twenty-five thousand, two hundred twenty-nine".