26506590325 has 6 divisors (see below), whose sum is σ = 32868172034. Its totient is φ = 21205272240.

The previous prime is 26506590293. The next prime is 26506590347. The reversal of 26506590325 is 52309560562.

It can be written as a sum of positive squares in 3 ways, for example, as 2108462724 + 24398127601 = 45918^2 + 156199^2 .

It is not a de Polignac number, because 26506590325 - 2⁵ = 26506590293 is a prime.

It is a Duffinian number.

It is a congruent 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, 530131782 + ... + 530131831.

Almost surely, 2^26506590325 is an apocalyptic number.

26506590325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26506590325 is a deficient number, since it is larger than the sum of its proper divisors (6361581709).

26506590325 is a wasteful number, since it uses less digits than its factorization.

26506590325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060263623 (or 1060263618 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 26506590325 in words is "twenty-six billion, five hundred six million, five hundred ninety thousand, three hundred twenty-five".