16800253 has 4 divisors (see below), whose sum is σ = 16817760. Its totient is φ = 16782748.

The previous prime is 16800221. The next prime is 16800269. The reversal of 16800253 is 35200861.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 16800253 - 2⁵ = 16800221 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 (16800053) 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, 7225 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (4204440).

Almost surely, 2^16800253 is an apocalyptic number.

It is an amenable number.

16800253 is a deficient number, since it is larger than the sum of its proper divisors (17507).

16800253 is a wasteful number, since it uses less digits than its factorization.

16800253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17506.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 16800253 is about 4098.8111691075. The cubic root of 16800253 is about 256.1171186519.

The spelling of 16800253 in words is "sixteen million, eight hundred thousand, two hundred fifty-three".