15313445532 has 72 divisors (see below), whose sum is σ = 48260564352. Its totient is φ = 3977517600.

The previous prime is 15313445531. The next prime is 15313445579. The reversal of 15313445532 is 23554431351.

15313445532 is a `hidden beast` number, since 1 + 53 + 1 + 34 + 45 + 532 = 666.

It is a super-2 number, since 2×15313445532² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15313445531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2759394 + ... + 2764937.

It is an arithmetic number, because the mean of its divisors is an integer number (670285616).

Almost surely, 2^15313445532 is an apocalyptic number.

15313445532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15313445532 is an abundant number, since it is smaller than the sum of its proper divisors (32947118820).

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

15313445532 is a wasteful number, since it uses less digits than its factorization.

15313445532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524359 (or 5524354 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 15313445532 its reverse (23554431351), we get a palindrome (38867876883).

The spelling of 15313445532 in words is "fifteen billion, three hundred thirteen million, four hundred forty-five thousand, five hundred thirty-two".