16325520 has 40 divisors (see below), whose sum is σ = 50609856. Its totient is φ = 4353408.

The previous prime is 16325489. The next prime is 16325531. The reversal of 16325520 is 2552361.

16325520 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33772 + ... + 34251.

Almost surely, 2^16325520 is an apocalyptic number.

16325520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16325520 is an abundant number, since it is smaller than the sum of its proper divisors (34284336).

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

16325520 is a wasteful number, since it uses less digits than its factorization.

16325520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68039 (or 68033 counting only the distinct ones).

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

The square root of 16325520 is about 4040.4851193885. The cubic root of 16325520 is about 253.6816231272.

Adding to 16325520 its reverse (2552361), we get a palindrome (18877881).

The spelling of 16325520 in words is "sixteen million, three hundred twenty-five thousand, five hundred twenty".