16506552 has 16 divisors (see below), whose sum is σ = 41266440. Its totient is φ = 5502176.

The previous prime is 16506547. The next prime is 16506557. The reversal of 16506552 is 25560561.

It is an interprime number because it is at equal distance from previous prime (16506547) and next prime (16506557).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16506557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343863 + ... + 343910.

Almost surely, 2^16506552 is an apocalyptic number.

16506552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16506552 is an abundant number, since it is smaller than the sum of its proper divisors (24759888).

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

16506552 is a wasteful number, since it uses less digits than its factorization.

16506552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687782 (or 687778 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 16506552 is about 4062.8256177198. The cubic root of 16506552 is about 254.6158614452.

The spelling of 16506552 in words is "sixteen million, five hundred six thousand, five hundred fifty-two".