20052042425 has 12 divisors (see below), whose sum is σ = 24894843756. Its totient is φ = 16022078400.

The previous prime is 20052042391. The next prime is 20052042457. The reversal of 20052042425 is 52424025002.

It can be written as a sum of positive squares in 6 ways, for example, as 79852096 + 19972190329 = 8936^2 + 141323^2 .

It is not a de Polignac number, because 20052042425 - 2²⁴ = 20035265209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20052042394 and 20052042403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 467954 + ... + 509003.

It is an arithmetic number, because the mean of its divisors is an integer number (2074570313).

Almost surely, 2^20052042425 is an apocalyptic number.

20052042425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20052042425 is a deficient number, since it is larger than the sum of its proper divisors (4842801331).

20052042425 is an equidigital number, since it uses as much as digits as its factorization.

20052042425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977788 (or 977783 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 20052042425 its reverse (52424025002), we get a palindrome (72476067427).

The spelling of 20052042425 in words is "twenty billion, fifty-two million, forty-two thousand, four hundred twenty-five".