20002402240025 has 6 divisors (see below), whose sum is σ = 24802978777662. Its totient is φ = 16001921792000.

The previous prime is 20002402240019. The next prime is 20002402240043. The reversal of 20002402240025 is 52004220420002.

It can be written as a sum of positive squares in 3 ways, for example, as 1580760542089 + 18421641697936 = 1257283^2 + 4292044^2 .

It is not a de Polignac number, because 20002402240025 - 2³⁸ = 19727524333081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400048044776 + ... + 400048044825.

It is an arithmetic number, because the mean of its divisors is an integer number (4133829796277).

Almost surely, 2^{20002402240025} is an apocalyptic number.

20002402240025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20002402240025 is a deficient number, since it is larger than the sum of its proper divisors (4800576537637).

20002402240025 is an equidigital number, since it uses as much as digits as its factorization.

20002402240025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800096089611 (or 800096089606 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 20002402240025 its reverse (52004220420002), we get a palindrome (72006622660027).

The spelling of 20002402240025 in words is "twenty trillion, two billion, four hundred two million, two hundred forty thousand, twenty-five".