16553039 has 4 divisors (see below), whose sum is σ = 17087040. Its totient is φ = 16019040.

The previous prime is 16552973. The next prime is 16553041. The reversal of 16553039 is 93035561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93035561 = 6197 ⋅15013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16553039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16552996 and 16553014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16553059) 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, 266954 + ... + 267015.

It is an arithmetic number, because the mean of its divisors is an integer number (4271760).

Almost surely, 2^16553039 is an apocalyptic number.

16553039 is a deficient number, since it is larger than the sum of its proper divisors (534001).

16553039 is an equidigital number, since it uses as much as digits as its factorization.

16553039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534000.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 16553039 is about 4068.5426137623. The cubic root of 16553039 is about 254.8546602254.

The spelling of 16553039 in words is "sixteen million, five hundred fifty-three thousand, thirty-nine".