25165354813 has 8 divisors (see below), whose sum is σ = 26647211520. Its totient is φ = 23683669440.

The previous prime is 25165354811. The next prime is 25165354817. The reversal of 25165354813 is 31845356152.

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 25165354813 - 2¹ = 25165354811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25165354813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25165354811) 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, 377508 + ... + 439138.

It is an arithmetic number, because the mean of its divisors is an integer number (3330901440).

Almost surely, 2^25165354813 is an apocalyptic number.

It is an amenable number.

25165354813 is a deficient number, since it is larger than the sum of its proper divisors (1481856707).

25165354813 is a wasteful number, since it uses less digits than its factorization.

25165354813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85667.

The product of its digits is 432000, while the sum is 43.

The spelling of 25165354813 in words is "twenty-five billion, one hundred sixty-five million, three hundred fifty-four thousand, eight hundred thirteen".