24725387540 has 24 divisors (see below), whose sum is σ = 59340930432. Its totient is φ = 8477275680.

The previous prime is 24725387521. The next prime is 24725387549. The reversal of 24725387540 is 4578352742.

It is a super-2 number, since 2×24725387540² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24725387549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88304816 + ... + 88305095.

It is an arithmetic number, because the mean of its divisors is an integer number (2472538768).

Almost surely, 2^24725387540 is an apocalyptic number.

24725387540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24725387540 is an abundant number, since it is smaller than the sum of its proper divisors (34615542892).

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

24725387540 is a wasteful number, since it uses less digits than its factorization.

24725387540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176609927 (or 176609925 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 24725387540 in words is "twenty-four billion, seven hundred twenty-five million, three hundred eighty-seven thousand, five hundred forty".