16445253 has 32 divisors (see below), whose sum is σ = 25546752. Its totient is φ = 9310400.

The previous prime is 16445251. The next prime is 16445309. The reversal of 16445253 is 35254461.

It is not a de Polignac number, because 16445253 - 2¹ = 16445251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16445253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35443 + ... + 35903.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 2^16445253 is an apocalyptic number.

It is an amenable number.

16445253 is a deficient number, since it is larger than the sum of its proper divisors (9101499).

16445253 is a wasteful number, since it uses less digits than its factorization.

16445253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 14400, while the sum is 30.

The square root of 16445253 is about 4055.2747132593. The cubic root of 16445253 is about 254.3002886152.

The spelling of 16445253 in words is "sixteen million, four hundred forty-five thousand, two hundred fifty-three".