16252247 has 4 divisors (see below), whose sum is σ = 17729736. Its totient is φ = 14774760.

The previous prime is 16252231. The next prime is 16252259. The reversal of 16252247 is 74225261.

It is a happy number.

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

It is not a de Polignac number, because 16252247 - 2⁴ = 16252231 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 (16252217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738728 + ... + 738749.

It is an arithmetic number, because the mean of its divisors is an integer number (4432434).

Almost surely, 2^16252247 is an apocalyptic number.

16252247 is a deficient number, since it is larger than the sum of its proper divisors (1477489).

16252247 is a wasteful number, since it uses less digits than its factorization.

16252247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477488.

The product of its digits is 6720, while the sum is 29.

The square root of 16252247 is about 4031.4075705639. The cubic root of 16252247 is about 253.3015251307.

The spelling of 16252247 in words is "sixteen million, two hundred fifty-two thousand, two hundred forty-seven".