15532150550 has 48 divisors (see below), whose sum is σ = 33032171520. Its totient is φ = 5322848160.

The previous prime is 15532150549. The next prime is 15532150553. The reversal of 15532150550 is 5505123551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15532150553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 851627 + ... + 869673.

It is an arithmetic number, because the mean of its divisors is an integer number (688170240).

Almost surely, 2^15532150550 is an apocalyptic number.

15532150550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15532150550 is an abundant number, since it is smaller than the sum of its proper divisors (17500020970).

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

15532150550 is a wasteful number, since it uses less digits than its factorization.

15532150550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20525 (or 20520 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 15532150550 in words is "fifteen billion, five hundred thirty-two million, one hundred fifty thousand, five hundred fifty".