25245531345 has 8 divisors (see below), whose sum is σ = 40392850176. Its totient is φ = 13464283376.

The previous prime is 25245531341. The next prime is 25245531359. The reversal of 25245531345 is 54313554252.

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 25245531345 - 2² = 25245531341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25245531341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841517697 + ... + 841517726.

It is an arithmetic number, because the mean of its divisors is an integer number (5049106272).

Almost surely, 2^25245531345 is an apocalyptic number.

It is an amenable number.

25245531345 is a deficient number, since it is larger than the sum of its proper divisors (15147318831).

25245531345 is a wasteful number, since it uses less digits than its factorization.

25245531345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683035431.

The product of its digits is 360000, while the sum is 39.

The spelling of 25245531345 in words is "twenty-five billion, two hundred forty-five million, five hundred thirty-one thousand, three hundred forty-five".