25340341505 has 4 divisors (see below), whose sum is σ = 30408409812. Its totient is φ = 20272273200.

The previous prime is 25340341487. The next prime is 25340341519. The reversal of 25340341505 is 50514304352.

It is a happy number.

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 15646757569 + 9693583936 = 125087^2 + 98456^2 .

It is not a de Polignac number, because 25340341505 - 2¹⁴ = 25340325121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2534034146 + ... + 2534034155.

It is an arithmetic number, because the mean of its divisors is an integer number (7602102453).

Almost surely, 2^25340341505 is an apocalyptic number.

It is an amenable number.

25340341505 is a deficient number, since it is larger than the sum of its proper divisors (5068068307).

25340341505 is an equidigital number, since it uses as much as digits as its factorization.

25340341505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068068306.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 25340341505 its reverse (50514304352), we get a palindrome (75854645857).

The spelling of 25340341505 in words is "twenty-five billion, three hundred forty million, three hundred forty-one thousand, five hundred five".