25507516011 has 8 divisors (see below), whose sum is σ = 34651720080. Its totient is φ = 16684161312.

The previous prime is 25507516003. The next prime is 25507516037. The reversal of 25507516011 is 11061570552.

It is a happy number.

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

It is not a de Polignac number, because 25507516011 - 2³ = 25507516003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25507518011) 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, 80212156 + ... + 80212473.

It is an arithmetic number, because the mean of its divisors is an integer number (4331465010).

Almost surely, 2^25507516011 is an apocalyptic number.

25507516011 is a deficient number, since it is larger than the sum of its proper divisors (9144204069).

25507516011 is a wasteful number, since it uses less digits than its factorization.

25507516011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160424685.

The product of its (nonzero) digits is 10500, while the sum is 33.

The spelling of 25507516011 in words is "twenty-five billion, five hundred seven million, five hundred sixteen thousand, eleven".