25825595797 has 8 divisors (see below), whose sum is σ = 25868937600. Its totient is φ = 25782292704.

The previous prime is 25825595771. The next prime is 25825595801. The reversal of 25825595797 is 79759552852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25825595797 is a prime.

It is a super-2 number, since 2×25825595797² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25825595597) 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, 1521604 + ... + 1538482.

It is an arithmetic number, because the mean of its divisors is an integer number (3233617200).

Almost surely, 2^25825595797 is an apocalyptic number.

It is an amenable number.

25825595797 is a deficient number, since it is larger than the sum of its proper divisors (43341803).

25825595797 is a wasteful number, since it uses less digits than its factorization.

25825595797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19355.

The product of its digits is 79380000, while the sum is 64.

The spelling of 25825595797 in words is "twenty-five billion, eight hundred twenty-five million, five hundred ninety-five thousand, seven hundred ninety-seven".