15120052432 has 80 divisors (see below), whose sum is σ = 31147470720. Its totient is φ = 7095052800.

The previous prime is 15120052429. The next prime is 15120052439. The reversal of 15120052432 is 23425002151.

It is a super-2 number, since 2×15120052432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15120052397 and 15120052406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120052439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14837619 + ... + 14838637.

It is an arithmetic number, because the mean of its divisors is an integer number (389343384).

Almost surely, 2^15120052432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15120052432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15573735360).

15120052432 is an abundant number, since it is smaller than the sum of its proper divisors (16027418288).

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

15120052432 is a wasteful number, since it uses less digits than its factorization.

15120052432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 15120052432 its reverse (23425002151), we get a palindrome (38545054583).

The spelling of 15120052432 in words is "fifteen billion, one hundred twenty million, fifty-two thousand, four hundred thirty-two".