15532312242 has 64 divisors (see below), whose sum is σ = 34648629120. Its totient is φ = 4613013504.

The previous prime is 15532312219. The next prime is 15532312249. The reversal of 15532312242 is 24221323551.

It is not an unprimeable number, because it can be changed into a prime (15532312249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4093098 + ... + 4096890.

It is an arithmetic number, because the mean of its divisors is an integer number (541384830).

Almost surely, 2^15532312242 is an apocalyptic number.

15532312242 is an abundant number, since it is smaller than the sum of its proper divisors (19116316878).

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

15532312242 is a wasteful number, since it uses less digits than its factorization.

15532312242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947.

The product of its digits is 14400, while the sum is 30.

Adding to 15532312242 its reverse (24221323551), we get a palindrome (39753635793).

The spelling of 15532312242 in words is "fifteen billion, five hundred thirty-two million, three hundred twelve thousand, two hundred forty-two".