24421025540 has 12 divisors (see below), whose sum is σ = 51284153676. Its totient is φ = 9768410208.

The previous prime is 24421025507. The next prime is 24421025549. The reversal of 24421025540 is 4552012442.

It can be written as a sum of positive squares in 2 ways, for example, as 14507238916 + 9913786624 = 120446^2 + 99568^2 .

It is not an unprimeable number, because it can be changed into a prime (24421025549) 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, 610525619 + ... + 610525658.

It is an arithmetic number, because the mean of its divisors is an integer number (4273679473).

Almost surely, 2^24421025540 is an apocalyptic number.

24421025540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24421025540 is an abundant number, since it is smaller than the sum of its proper divisors (26863128136).

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

24421025540 is a wasteful number, since it uses less digits than its factorization.

24421025540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221051286 (or 1221051284 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 24421025540 its reverse (4552012442), we get a palindrome (28973037982).

The spelling of 24421025540 in words is "twenty-four billion, four hundred twenty-one million, twenty-five thousand, five hundred forty".