15533230540 has 48 divisors (see below), whose sum is σ = 33304955040. Its totient is φ = 6084011520.

The previous prime is 15533230501. The next prime is 15533230541. The reversal of 15533230540 is 4503233551.

It is not an unprimeable number, because it can be changed into a prime (15533230541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 164670 + ... + 241210.

It is an arithmetic number, because the mean of its divisors is an integer number (693853230).

Almost surely, 2^15533230540 is an apocalyptic number.

15533230540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15533230540 is an abundant number, since it is smaller than the sum of its proper divisors (17771724500).

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

15533230540 is a wasteful number, since it uses less digits than its factorization.

15533230540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76762 (or 76760 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 15533230540 in words is "fifteen billion, five hundred thirty-three million, two hundred thirty thousand, five hundred forty".