25376380940593 has 4 divisors (see below), whose sum is σ = 25661508816420. Its totient is φ = 25091253064768.

The previous prime is 25376380940569. The next prime is 25376380940597. The reversal of 25376380940593 is 39504908367352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9122767833664 + 16253613106929 = 3020392^2 + 4031577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25376380940593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25376380940597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142563937780 + ... + 142563937957.

It is an arithmetic number, because the mean of its divisors is an integer number (6415377204105).

Almost surely, 2^{25376380940593} is an apocalyptic number.

It is an amenable number.

25376380940593 is a deficient number, since it is larger than the sum of its proper divisors (285127875827).

25376380940593 is an equidigital number, since it uses as much as digits as its factorization.

25376380940593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285127875826.

The product of its (nonzero) digits is 146966400, while the sum is 64.

The spelling of 25376380940593 in words is "twenty-five trillion, three hundred seventy-six billion, three hundred eighty million, nine hundred forty thousand, five hundred ninety-three".