25506116299 has 8 divisors (see below), whose sum is σ = 25642733760. Its totient is φ = 25369545216.

The previous prime is 25506116297. The next prime is 25506116393. The reversal of 25506116299 is 99261160552.

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 25506116299 - 2¹ = 25506116297 is a prime.

It is a super-2 number, since 2×25506116299² (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 (25506116297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170989 + ... + 2182705.

It is an arithmetic number, because the mean of its divisors is an integer number (3205341720).

Almost surely, 2^25506116299 is an apocalyptic number.

25506116299 is a deficient number, since it is larger than the sum of its proper divisors (136617461).

25506116299 is a wasteful number, since it uses less digits than its factorization.

25506116299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23189.

The product of its (nonzero) digits is 291600, while the sum is 46.

The spelling of 25506116299 in words is "twenty-five billion, five hundred six million, one hundred sixteen thousand, two hundred ninety-nine".