15532312002 has 16 divisors (see below), whose sum is σ = 31067871840. Its totient is φ = 5176896032.

The previous prime is 15532311997. The next prime is 15532312009. The reversal of 15532312002 is 20021323551.

It is a happy number.

15532312002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15532312002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15532312009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70788 + ... + 189935.

It is an arithmetic number, because the mean of its divisors is an integer number (1941741990).

Almost surely, 2^15532312002 is an apocalyptic number.

15532312002 is an abundant number, since it is smaller than the sum of its proper divisors (15535559838).

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

15532312002 is a wasteful number, since it uses less digits than its factorization.

15532312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270657.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 15532312002 its reverse (20021323551), we get a palindrome (35553635553).

The spelling of 15532312002 in words is "fifteen billion, five hundred thirty-two million, three hundred twelve thousand, two".