25312133121353 has 8 divisors (see below), whose sum is σ = 27259427181000. Its totient is φ = 23364868618368.

The previous prime is 25312133121323. The next prime is 25312133121377. The reversal of 25312133121353 is 35312133121352.

It can be written as a sum of positive squares in 4 ways, for example, as 2258038166329 + 23054094955024 = 1502677^2 + 4801468^2 .

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 25312133121353 - 2³² = 25307838154057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25312133121323) 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, 5594348 + ... + 9051021.

It is an arithmetic number, because the mean of its divisors is an integer number (3407428397625).

Almost surely, 2^{25312133121353} is an apocalyptic number.

It is an amenable number.

25312133121353 is a deficient number, since it is larger than the sum of its proper divisors (1947294059647).

25312133121353 is a wasteful number, since it uses less digits than its factorization.

25312133121353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14778331.

The product of its digits is 48600, while the sum is 35.

Subtracting 25312133121353 from its reverse (35312133121352), we obtain a palindrome (9999999999999).

The spelling of 25312133121353 in words is "twenty-five trillion, three hundred twelve billion, one hundred thirty-three million, one hundred twenty-one thousand, three hundred fifty-three".