15532150243 has 4 divisors (see below), whose sum is σ = 15535009288. Its totient is φ = 15529291200.

The previous prime is 15532150199. The next prime is 15532150247. The reversal of 15532150243 is 34205123551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15532150243 is a prime.

It is a super-2 number, since 2×15532150243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15532150247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421358 + ... + 1432243.

It is an arithmetic number, because the mean of its divisors is an integer number (3883752322).

Almost surely, 2^15532150243 is an apocalyptic number.

15532150243 is a deficient number, since it is larger than the sum of its proper divisors (2859045).

15532150243 is an equidigital number, since it uses as much as digits as its factorization.

15532150243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859044.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 15532150243 its reverse (34205123551), we get a palindrome (49737273794).

The spelling of 15532150243 in words is "fifteen billion, five hundred thirty-two million, one hundred fifty thousand, two hundred forty-three".