16503085 has 8 divisors (see below), whose sum is σ = 19979640. Its totient is φ = 13085184.

The previous prime is 16503061. The next prime is 16503089. The reversal of 16503085 is 58030561.

It can be written as a sum of positive squares in 4 ways, for example, as 35721 + 16467364 = 189^2 + 4058^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16503085 - 2¹³ = 16494893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16503089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14040 + ... + 15169.

It is an arithmetic number, because the mean of its divisors is an integer number (2497455).

Almost surely, 2^16503085 is an apocalyptic number.

It is an amenable number.

16503085 is a deficient number, since it is larger than the sum of its proper divisors (3476555).

16503085 is a wasteful number, since it uses less digits than its factorization.

16503085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29327.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 16503085 is about 4062.3989218195. The cubic root of 16503085 is about 254.5980338779.

The spelling of 16503085 in words is "sixteen million, five hundred three thousand, eighty-five".