2400025520 has 20 divisors (see below), whose sum is σ = 5580059520. Its totient is φ = 960010176.

The previous prime is 2400025483. The next prime is 2400025543. The reversal of 2400025520 is 255200042.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2400025492 and 2400025501.

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 3 ways as a sum of consecutive naturals, for example, 15000080 + ... + 15000239.

It is an arithmetic number, because the mean of its divisors is an integer number (279002976).

Almost surely, 2^2400025520 is an apocalyptic number.

2400025520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2400025520 is an abundant number, since it is smaller than the sum of its proper divisors (3180034000).

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

2400025520 is a wasteful number, since it uses less digits than its factorization.

2400025520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30000332 (or 30000326 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2400025520 is about 48990.0553173805. The cubic root of 2400025520 is about 1338.8706456833.

Adding to 2400025520 its reverse (255200042), we get a palindrome (2655225562).

The spelling of 2400025520 in words is "two billion, four hundred million, twenty-five thousand, five hundred twenty".