25341791449105 has 4 divisors (see below), whose sum is σ = 30410149738932. Its totient is φ = 20273433159280.

The previous prime is 25341791449081. The next prime is 25341791449109. The reversal of 25341791449105 is 50194419714352.

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 6426590045184 + 18915201403921 = 2535072^2 + 4349161^2 .

It is not a de Polignac number, because 25341791449105 - 2⁴¹ = 23142768193553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25341791449109) 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, 2534179144906 + ... + 2534179144915.

It is an arithmetic number, because the mean of its divisors is an integer number (7602537434733).

Almost surely, 2^{25341791449105} is an apocalyptic number.

It is an amenable number.

25341791449105 is a deficient number, since it is larger than the sum of its proper divisors (5068358289827).

25341791449105 is an equidigital number, since it uses as much as digits as its factorization.

25341791449105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068358289826.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 25341791449105 in words is "twenty-five trillion, three hundred forty-one billion, seven hundred ninety-one million, four hundred forty-nine thousand, one hundred five".