16273253 has 4 divisors (see below), whose sum is σ = 17129760. Its totient is φ = 15416748.

The previous prime is 16273249. The next prime is 16273261. The reversal of 16273253 is 35237261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35237261 = 181 ⋅194681.

It is a cyclic number.

It is not a de Polignac number, because 16273253 - 2² = 16273249 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 (16273223) 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, 428225 + ... + 428262.

It is an arithmetic number, because the mean of its divisors is an integer number (4282440).

Almost surely, 2^16273253 is an apocalyptic number.

It is an amenable number.

16273253 is a deficient number, since it is larger than the sum of its proper divisors (856507).

16273253 is an equidigital number, since it uses as much as digits as its factorization.

16273253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856506.

The product of its digits is 7560, while the sum is 29.

The square root of 16273253 is about 4034.0120227882. The cubic root of 16273253 is about 253.4106087359.

It can be divided in two parts, 1627 and 3253, that multiplied together give a triangular number (5292631 = T₃₂₅₃).

The spelling of 16273253 in words is "sixteen million, two hundred seventy-three thousand, two hundred fifty-three".