16521052 has 12 divisors (see below), whose sum is σ = 29168496. Its totient is φ = 8187200.

The previous prime is 16521031. The next prime is 16521053. The reversal of 16521052 is 25012561.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16521053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17824 + ... + 18727.

It is an arithmetic number, because the mean of its divisors is an integer number (2430708).

Almost surely, 2^16521052 is an apocalyptic number.

It is an amenable number.

16521052 is a deficient number, since it is larger than the sum of its proper divisors (12647444).

16521052 is a wasteful number, since it uses less digits than its factorization.

16521052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36668 (or 36666 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 16521052 is about 4064.6096983597. The cubic root of 16521052 is about 254.6903944645.

It can be divided in two parts, 1652 and 1052, that added together give a square (2704 = 52²).

The spelling of 16521052 in words is "sixteen million, five hundred twenty-one thousand, fifty-two".