15325920 has 144 divisors (see below), whose sum is σ = 54250560. Its totient is φ = 3935232.

The previous prime is 15325909. The next prime is 15325927. The reversal of 15325920 is 2952351.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15325927) 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, 41577 + ... + 41943.

It is an arithmetic number, because the mean of its divisors is an integer number (376740).

Almost surely, 2^15325920 is an apocalyptic number.

15325920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15325920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27125280).

15325920 is an abundant number, since it is smaller than the sum of its proper divisors (38924640).

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

15325920 is a wasteful number, since it uses less digits than its factorization.

15325920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 15325920 is about 3914.8333297856. The cubic root of 15325920 is about 248.3946197501.

The spelling of 15325920 in words is "fifteen million, three hundred twenty-five thousand, nine hundred twenty".