25020796717 has 4 divisors (see below), whose sum is σ = 28595196256. Its totient is φ = 21446397180.

The previous prime is 25020796657. The next prime is 25020796729. The reversal of 25020796717 is 71769702052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25020796717 - 2¹⁹ = 25020272429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25020796777) 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, 1787199759 + ... + 1787199772.

It is an arithmetic number, because the mean of its divisors is an integer number (7148799064).

Almost surely, 2^25020796717 is an apocalyptic number.

It is an amenable number.

25020796717 is a deficient number, since it is larger than the sum of its proper divisors (3574399539).

25020796717 is an equidigital number, since it uses as much as digits as its factorization.

25020796717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574399538.

The product of its (nonzero) digits is 370440, while the sum is 46.

The spelling of 25020796717 in words is "twenty-five billion, twenty million, seven hundred ninety-six thousand, seven hundred seventeen".