25454144514 has 16 divisors (see below), whose sum is σ = 51047008128. Its totient is φ = 8461594992.

The previous prime is 25454144497. The next prime is 25454144539. The reversal of 25454144514 is 41544145452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5777577 + ... + 5781980.

It is an arithmetic number, because the mean of its divisors is an integer number (3190438008).

Almost surely, 2^25454144514 is an apocalyptic number.

25454144514 is an abundant number, since it is smaller than the sum of its proper divisors (25592863614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25454144514 is a wasteful number, since it uses less digits than its factorization.

25454144514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11559929.

The product of its digits is 256000, while the sum is 39.

Adding to 25454144514 its reverse (41544145452), we get a palindrome (66998289966).

The spelling of 25454144514 in words is "twenty-five billion, four hundred fifty-four million, one hundred forty-four thousand, five hundred fourteen".