16552247 has 4 divisors (see below), whose sum is σ = 16600296. Its totient is φ = 16504200.

The previous prime is 16552241. The next prime is 16552253. The reversal of 16552247 is 74225561.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16552241) and next prime (16552253).

It is a cyclic number.

It is not a de Polignac number, because 16552247 - 2⁴ = 16552231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16552241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23504 + ... + 24197.

It is an arithmetic number, because the mean of its divisors is an integer number (4150074).

Almost surely, 2^16552247 is an apocalyptic number.

16552247 is a deficient number, since it is larger than the sum of its proper divisors (48049).

16552247 is an equidigital number, since it uses as much as digits as its factorization.

16552247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48048.

The product of its digits is 16800, while the sum is 32.

The square root of 16552247 is about 4068.4452804480. The cubic root of 16552247 is about 254.8505955517.

The spelling of 16552247 in words is "sixteen million, five hundred fifty-two thousand, two hundred forty-seven".