15532445240 has 96 divisors (see below), whose sum is σ = 39148531200. Its totient is φ = 5537226240.

The previous prime is 15532445239. The next prime is 15532445293. The reversal of 15532445240 is 4254423551.

It is a self number, because there is not a number n which added to its sum of digits gives 15532445240.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 156425 + ... + 235655.

It is an arithmetic number, because the mean of its divisors is an integer number (407797200).

Almost surely, 2^15532445240 is an apocalyptic number.

15532445240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15532445240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19574265600).

15532445240 is an abundant number, since it is smaller than the sum of its proper divisors (23616085960).

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

15532445240 is a wasteful number, since it uses less digits than its factorization.

15532445240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79297 (or 79280 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 15532445240 its reverse (4254423551), we get a palindrome (19786868791).

The spelling of 15532445240 in words is "fifteen billion, five hundred thirty-two million, four hundred forty-five thousand, two hundred forty".