16552239 has 16 divisors (see below), whose sum is σ = 24409344. Its totient is φ = 9892800.

The previous prime is 16552231. The next prime is 16552241. The reversal of 16552239 is 93225561.

It is not a de Polignac number, because 16552239 - 2³ = 16552231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16552231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027 + ... + 5844.

It is an arithmetic number, because the mean of its divisors is an integer number (1525584).

Almost surely, 2^16552239 is an apocalyptic number.

16552239 is a deficient number, since it is larger than the sum of its proper divisors (7857105).

16552239 is a wasteful number, since it uses less digits than its factorization.

16552239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958.

The product of its digits is 16200, while the sum is 33.

The square root of 16552239 is about 4068.4442972714. Note that the first 3 decimals coincide. The cubic root of 16552239 is about 254.8505544937.

It can be divided in two parts, 165522 and 39, that added together give a palindrome (165561).

The spelling of 16552239 in words is "sixteen million, five hundred fifty-two thousand, two hundred thirty-nine".