16890552 has 64 divisors (see below), whose sum is σ = 53625600. Its totient is φ = 4825440.

The previous prime is 16890541. The next prime is 16890581. The reversal of 16890552 is 25509861.

It is a happy number.

16890552 is a `hidden beast` number, since 16 + 8 + 90 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4074 + ... + 7097.

It is an arithmetic number, because the mean of its divisors is an integer number (837900).

Almost surely, 2^16890552 is an apocalyptic number.

16890552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16890552 is an abundant number, since it is smaller than the sum of its proper divisors (36735048).

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

16890552 is a wasteful number, since it uses less digits than its factorization.

16890552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193 (or 11183 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 16890552 is about 4109.8116745175. The cubic root of 16890552 is about 256.5751634995.

The spelling of 16890552 in words is "sixteen million, eight hundred ninety thousand, five hundred fifty-two".