25241145144 has 64 divisors (see below), whose sum is σ = 65094364800. Its totient is φ = 8150189184.

The previous prime is 25241145119. The next prime is 25241145161. The reversal of 25241145144 is 44154114252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138967 + ... + 264185.

It is an arithmetic number, because the mean of its divisors is an integer number (1017099450).

Almost surely, 2^25241145144 is an apocalyptic number.

25241145144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25241145144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32547182400).

25241145144 is an abundant number, since it is smaller than the sum of its proper divisors (39853219656).

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

25241145144 is a wasteful number, since it uses less digits than its factorization.

25241145144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125492 (or 125488 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

Adding to 25241145144 its reverse (44154114252), we get a palindrome (69395259396).

The spelling of 25241145144 in words is "twenty-five billion, two hundred forty-one million, one hundred forty-five thousand, one hundred forty-four".