25117762141 has 4 divisors (see below), whose sum is σ = 25983891900. Its totient is φ = 24251632384.

The previous prime is 25117762133. The next prime is 25117762171. The reversal of 25117762141 is 14126771152.

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 17990856900 + 7126905241 = 134130^2 + 84421^2 .

It is a cyclic number.

It is not a de Polignac number, because 25117762141 - 2³ = 25117762133 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 25117762141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25117762171) 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 3 ways as a sum of consecutive naturals, for example, 433064836 + ... + 433064893.

It is an arithmetic number, because the mean of its divisors is an integer number (6495972975).

Almost surely, 2^25117762141 is an apocalyptic number.

It is an amenable number.

25117762141 is a deficient number, since it is larger than the sum of its proper divisors (866129759).

25117762141 is an equidigital number, since it uses as much as digits as its factorization.

25117762141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866129758.

The product of its digits is 23520, while the sum is 37.

The spelling of 25117762141 in words is "twenty-five billion, one hundred seventeen million, seven hundred sixty-two thousand, one hundred forty-one".