25312303304545 has 8 divisors (see below), whose sum is σ = 30383540283240. Its totient is φ = 20243991765120.

The previous prime is 25312303304539. The next prime is 25312303304551. The reversal of 25312303304545 is 54540330321352.

It is an interprime number because it is at equal distance from previous prime (25312303304539) and next prime (25312303304551).

It can be written as a sum of positive squares in 4 ways, for example, as 67225599841 + 25245077704704 = 259279^2 + 5024448^2 .

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

It is not a de Polignac number, because 25312303304545 - 2²⁵ = 25312269750113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25312303304498 and 25312303304507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731340780 + ... + 731375389.

It is an arithmetic number, because the mean of its divisors is an integer number (3797942535405).

Almost surely, 2^{25312303304545} is an apocalyptic number.

It is an amenable number.

25312303304545 is a deficient number, since it is larger than the sum of its proper divisors (5071236978695).

25312303304545 is a wasteful number, since it uses less digits than its factorization.

25312303304545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462719635.

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 25312303304545 its reverse (54540330321352), we get a palindrome (79852633625897).

The spelling of 25312303304545 in words is "twenty-five trillion, three hundred twelve billion, three hundred three million, three hundred four thousand, five hundred forty-five".