1325402421025 has 6 divisors (see below), whose sum is σ = 1643499002102. Its totient is φ = 1060321936800.

The previous prime is 1325402420999. The next prime is 1325402421041. The reversal of 1325402421025 is 5201242045231.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11148825744 + 1314253595281 = 105588^2 + 1146409^2 .

It is not a de Polignac number, because 1325402421025 - 2⁷ = 1325402420897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26508048396 + ... + 26508048445.

Almost surely, 2^{1325402421025} is an apocalyptic number.

It is an amenable number.

1325402421025 is a deficient number, since it is larger than the sum of its proper divisors (318096581077).

1325402421025 is an equidigital number, since it uses as much as digits as its factorization.

1325402421025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53016096851 (or 53016096846 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1325402421025 its reverse (5201242045231), we get a palindrome (6526644466256).

The spelling of 1325402421025 in words is "one trillion, three hundred twenty-five billion, four hundred two million, four hundred twenty-one thousand, twenty-five".