25254525144 has 32 divisors (see below), whose sum is σ = 63149307120. Its totient is φ = 8416442496.

The previous prime is 25254525133. The next prime is 25254525169. The reversal of 25254525144 is 44152545252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13554 + ... + 225150.

Almost surely, 2^25254525144 is an apocalyptic number.

25254525144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25254525144 is an abundant number, since it is smaller than the sum of its proper divisors (37894781976).

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

25254525144 is a wasteful number, since it uses less digits than its factorization.

25254525144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216579 (or 216575 counting only the distinct ones).

The product of its digits is 320000, while the sum is 39.

The spelling of 25254525144 in words is "twenty-five billion, two hundred fifty-four million, five hundred twenty-five thousand, one hundred forty-four".