16505052 has 12 divisors (see below), whose sum is σ = 38511816. Its totient is φ = 5501680.

The previous prime is 16505039. The next prime is 16505063. The reversal of 16505052 is 25050561.

It is a tau number, because it is divible by the number of its divisors (12).

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

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, 687699 + ... + 687722.

It is an arithmetic number, because the mean of its divisors is an integer number (3209318).

Almost surely, 2^16505052 is an apocalyptic number.

16505052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16505052 is an abundant number, since it is smaller than the sum of its proper divisors (22006764).

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

16505052 is a wasteful number, since it uses less digits than its factorization.

16505052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375428 (or 1375426 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 16505052 is about 4062.6410129373. The cubic root of 16505052 is about 254.6081486420.

The spelling of 16505052 in words is "sixteen million, five hundred five thousand, fifty-two".