16552765 has 8 divisors (see below), whose sum is σ = 20548440. Its totient is φ = 12785472.

The previous prime is 16552741. The next prime is 16552769. The reversal of 16552765 is 56725561.

It can be written as a sum of positive squares in 4 ways, for example, as 4897369 + 11655396 = 2213^2 + 3414^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16552765 - 2⁵ = 16552733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16552769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56934 + ... + 57223.

It is an arithmetic number, because the mean of its divisors is an integer number (2568555).

Almost surely, 2^16552765 is an apocalyptic number.

It is an amenable number.

16552765 is a deficient number, since it is larger than the sum of its proper divisors (3995675).

16552765 is a wasteful number, since it uses less digits than its factorization.

16552765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114191.

The product of its digits is 63000, while the sum is 37.

The square root of 16552765 is about 4068.5089406317. The cubic root of 16552765 is about 254.8532540272.

The spelling of 16552765 in words is "sixteen million, five hundred fifty-two thousand, seven hundred sixty-five".