25224113121440 has 48 divisors (see below), whose sum is σ = 60481399622112. Its totient is φ = 9939053524224.

The previous prime is 25224113121409. The next prime is 25224113121443. The reversal of 25224113121440 is 4412131142252.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 25224113121397 and 25224113121406.

It is not an unprimeable number, because it can be changed into a prime (25224113121443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176487094 + ... + 1176508533.

It is an arithmetic number, because the mean of its divisors is an integer number (1260029158794).

Almost surely, 2^{25224113121440} is an apocalyptic number.

25224113121440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25224113121440 is an abundant number, since it is smaller than the sum of its proper divisors (35257286500672).

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

25224113121440 is a wasteful number, since it uses less digits than its factorization.

25224113121440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352995709 (or 2352995701 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 25224113121440 its reverse (4412131142252), we get a palindrome (29636244263692).

The spelling of 25224113121440 in words is "twenty-five trillion, two hundred twenty-four billion, one hundred thirteen million, one hundred twenty-one thousand, four hundred forty".