25071167117 has 4 divisors (see below), whose sum is σ = 25544208060. Its totient is φ = 24598126176.

The previous prime is 25071167101. The next prime is 25071167131. The reversal of 25071167117 is 71176117052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10238606596 + 14832560521 = 101186^2 + 121789^2 .

It is a cyclic number.

It is not a de Polignac number, because 25071167117 - 2⁴ = 25071167101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25071167167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236520392 + ... + 236520497.

It is an arithmetic number, because the mean of its divisors is an integer number (6386052015).

Almost surely, 2^25071167117 is an apocalyptic number.

It is an amenable number.

25071167117 is a deficient number, since it is larger than the sum of its proper divisors (473040943).

25071167117 is an equidigital number, since it uses as much as digits as its factorization.

25071167117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473040942.

The product of its (nonzero) digits is 20580, while the sum is 38.

The spelling of 25071167117 in words is "twenty-five billion, seventy-one million, one hundred sixty-seven thousand, one hundred seventeen".