15532555040 has 48 divisors (see below), whose sum is σ = 38291133888. Its totient is φ = 5942889216.

The previous prime is 15532555037. The next prime is 15532555061. The reversal of 15532555040 is 4055523551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2106722 + ... + 2114081.

It is an arithmetic number, because the mean of its divisors is an integer number (797731956).

Almost surely, 2^15532555040 is an apocalyptic number.

15532555040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15532555040 is an abundant number, since it is smaller than the sum of its proper divisors (22758578848).

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

15532555040 is a wasteful number, since it uses less digits than its factorization.

15532555040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220841 (or 4220833 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 15532555040 in words is "fifteen billion, five hundred thirty-two million, five hundred fifty-five thousand, forty".