20425712441 has 2 divisors, whose sum is σ = 20425712442. Its totient is φ = 20425712440.

The previous prime is 20425712407. The next prime is 20425712459. The reversal of 20425712441 is 14421752402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20393268025 + 32444416 = 142805^2 + 5696^2 .

It is a cyclic number.

It is not a de Polignac number, because 20425712441 - 2²² = 20421518137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20425712398 and 20425712407.

It is not a weakly prime, because it can be changed into another prime (20425712401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212856220 + 10212856221.

It is an arithmetic number, because the mean of its divisors is an integer number (10212856221).

Almost surely, 2^20425712441 is an apocalyptic number.

It is an amenable number.

20425712441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20425712441 is an equidigital number, since it uses as much as digits as its factorization.

20425712441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 32.

The spelling of 20425712441 in words is "twenty billion, four hundred twenty-five million, seven hundred twelve thousand, four hundred forty-one".