2645320012025 has 6 divisors (see below), whose sum is σ = 3280196814942. Its totient is φ = 2116256009600.

The previous prime is 2645320012009. The next prime is 2645320012037. The reversal of 2645320012025 is 5202100235462.

It can be written as a sum of positive squares in 3 ways, for example, as 10463857849 + 2634856154176 = 102293^2 + 1623224^2 .

It is not a de Polignac number, because 2645320012025 - 2⁴ = 2645320012009 is a prime.

It is a super-3 number, since 3×2645320012025³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2645320011982 and 2645320012000.

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, 52906400216 + ... + 52906400265.

It is an arithmetic number, because the mean of its divisors is an integer number (546699469157).

Almost surely, 2^{2645320012025} is an apocalyptic number.

2645320012025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2645320012025 is a deficient number, since it is larger than the sum of its proper divisors (634876802917).

2645320012025 is a wasteful number, since it uses less digits than its factorization.

2645320012025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105812800491 (or 105812800486 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 2645320012025 its reverse (5202100235462), we get a palindrome (7847420247487).

The spelling of 2645320012025 in words is "two trillion, six hundred forty-five billion, three hundred twenty million, twelve thousand, twenty-five".