25465144501211 has 4 divisors (see below), whose sum is σ = 25813982097192. Its totient is φ = 25116306905232.

The previous prime is 25465144501171. The next prime is 25465144501241. The reversal of 25465144501211 is 11210544156452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25465144501211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25465144501241) 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, 174418797881 + ... + 174418798026.

It is an arithmetic number, because the mean of its divisors is an integer number (6453495524298).

Almost surely, 2^{25465144501211} is an apocalyptic number.

25465144501211 is a deficient number, since it is larger than the sum of its proper divisors (348837595981).

25465144501211 is an equidigital number, since it uses as much as digits as its factorization.

25465144501211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348837595980.

The product of its (nonzero) digits is 192000, while the sum is 41.

Adding to 25465144501211 its reverse (11210544156452), we get a palindrome (36675688657663).

The spelling of 25465144501211 in words is "twenty-five trillion, four hundred sixty-five billion, one hundred forty-four million, five hundred one thousand, two hundred eleven".