25312232245 has 8 divisors (see below), whose sum is σ = 31195616184. Its totient is φ = 19702494144.

The previous prime is 25312232243. The next prime is 25312232293. The reversal of 25312232245 is 54223221352.

It can be written as a sum of positive squares in 4 ways, for example, as 6921075249 + 18391156996 = 83193^2 + 135614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25312232245 - 2¹ = 25312232243 is a prime.

It is a super-3 number, since 3×25312232245³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25312232243) 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 7 ways as a sum of consecutive naturals, for example, 68411254 + ... + 68411623.

It is an arithmetic number, because the mean of its divisors is an integer number (3899452023).

Almost surely, 2^25312232245 is an apocalyptic number.

It is an amenable number.

25312232245 is a deficient number, since it is larger than the sum of its proper divisors (5883383939).

25312232245 is a wasteful number, since it uses less digits than its factorization.

25312232245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136822919.

The product of its digits is 28800, while the sum is 31.

Adding to 25312232245 its reverse (54223221352), we get a palindrome (79535453597).

The spelling of 25312232245 in words is "twenty-five billion, three hundred twelve million, two hundred thirty-two thousand, two hundred forty-five".