20456030102425 has 6 divisors (see below), whose sum is σ = 25365477327038. Its totient is φ = 16364824081920.

The previous prime is 20456030102369. The next prime is 20456030102429. The reversal of 20456030102425 is 52420103065402.

It can be written as a sum of positive squares in 3 ways, for example, as 2979642154896 + 17476387947529 = 1726164^2 + 4180477^2 .

It is not a de Polignac number, because 20456030102425 - 2⁷ = 20456030102297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20456030102429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409120602024 + ... + 409120602073.

Almost surely, 2^{20456030102425} is an apocalyptic number.

20456030102425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20456030102425 is a deficient number, since it is larger than the sum of its proper divisors (4909447224613).

20456030102425 is an equidigital number, since it uses as much as digits as its factorization.

20456030102425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818241204107 (or 818241204102 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 20456030102425 its reverse (52420103065402), we get a palindrome (72876133167827).

The spelling of 20456030102425 in words is "twenty trillion, four hundred fifty-six billion, thirty million, one hundred two thousand, four hundred twenty-five".