15240453520 has 40 divisors (see below), whose sum is σ = 36655923960. Its totient is φ = 5885967360.

The previous prime is 15240453421. The next prime is 15240453521. The reversal of 15240453520 is 2535404251.

15240453520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1081357456 + 14159096064 = 32884^2 + 118992^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (15240453521) by changing a digit.

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, 3282261 + ... + 3286900.

It is an arithmetic number, because the mean of its divisors is an integer number (916398099).

Almost surely, 2^15240453520 is an apocalyptic number.

15240453520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15240453520 is an abundant number, since it is smaller than the sum of its proper divisors (21415470440).

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

15240453520 is a wasteful number, since it uses less digits than its factorization.

15240453520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569203 (or 6569197 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 15240453520 its reverse (2535404251), we get a palindrome (17775857771).

The spelling of 15240453520 in words is "fifteen billion, two hundred forty million, four hundred fifty-three thousand, five hundred twenty".