25260825361 has 4 divisors (see below), whose sum is σ = 25350086512. Its totient is φ = 25171564212.

The previous prime is 25260825329. The next prime is 25260825367. The reversal of 25260825361 is 16352806252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25260825361 - 2⁵ = 25260825329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25260825367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44630151 + ... + 44630716.

It is an arithmetic number, because the mean of its divisors is an integer number (6337521628).

Almost surely, 2^25260825361 is an apocalyptic number.

It is an amenable number.

25260825361 is a deficient number, since it is larger than the sum of its proper divisors (89261151).

25260825361 is an equidigital number, since it uses as much as digits as its factorization.

25260825361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89261150.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 25260825361 in words is "twenty-five billion, two hundred sixty million, eight hundred twenty-five thousand, three hundred sixty-one".