15532422312 has 32 divisors (see below), whose sum is σ = 42361152480. Its totient is φ = 4706794560.

The previous prime is 15532422293. The next prime is 15532422319. The reversal of 15532422312 is 21322423551.

It is a super-2 number, since 2×15532422312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15532422312.

It is not an unprimeable number, because it can be changed into a prime (15532422319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29417203 + ... + 29417730.

It is an arithmetic number, because the mean of its divisors is an integer number (1323786015).

Almost surely, 2^15532422312 is an apocalyptic number.

15532422312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15532422312 is an abundant number, since it is smaller than the sum of its proper divisors (26828730168).

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

15532422312 is a wasteful number, since it uses less digits than its factorization.

15532422312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58834953 (or 58834949 counting only the distinct ones).

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

Adding to 15532422312 its reverse (21322423551), we get a palindrome (36854845863).

The spelling of 15532422312 in words is "fifteen billion, five hundred thirty-two million, four hundred twenty-two thousand, three hundred twelve".