16515152 has 20 divisors (see below), whose sum is σ = 33102420. Its totient is φ = 7972608.

The previous prime is 16515137. The next prime is 16515193. The reversal of 16515152 is 25151561.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 12418576 = 2024^2 + 3524^2 .

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17333 + ... + 18260.

It is an arithmetic number, because the mean of its divisors is an integer number (1655121).

Almost surely, 2^16515152 is an apocalyptic number.

It is an amenable number.

16515152 is an abundant number, since it is smaller than the sum of its proper divisors (16587268).

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

16515152 is a wasteful number, since it uses less digits than its factorization.

16515152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35630 (or 35624 counting only the distinct ones).

The product of its digits is 1500, while the sum is 26.

The square root of 16515152 is about 4063.8838566081. The cubic root of 16515152 is about 254.6600725003.

The spelling of 16515152 in words is "sixteen million, five hundred fifteen thousand, one hundred fifty-two".