25502672099 has 8 divisors (see below), whose sum is σ = 25991623680. Its totient is φ = 25016906376.

The previous prime is 25502672089. The next prime is 25502672131. The reversal of 25502672099 is 99027620552.

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-25502672099 is a prime.

It is a super-2 number, since 2×25502672099² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25502672029) 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, 780299 + ... + 812324.

It is an arithmetic number, because the mean of its divisors is an integer number (3248952960).

Almost surely, 2^25502672099 is an apocalyptic number.

25502672099 is a deficient number, since it is larger than the sum of its proper divisors (488951581).

25502672099 is a wasteful number, since it uses less digits than its factorization.

25502672099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592929.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 25502672099 in words is "twenty-five billion, five hundred two million, six hundred seventy-two thousand, ninety-nine".