16030503253 has 4 divisors (see below), whose sum is σ = 16037627008. Its totient is φ = 16023379500.

The previous prime is 16030503241. The next prime is 16030503257. The reversal of 16030503253 is 35230503061.

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 16030503253 - 2⁵ = 16030503221 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 (16030503257) 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, 3558501 + ... + 3563002.

It is an arithmetic number, because the mean of its divisors is an integer number (4009406752).

Almost surely, 2^16030503253 is an apocalyptic number.

It is an amenable number.

16030503253 is a deficient number, since it is larger than the sum of its proper divisors (7123755).

16030503253 is an equidigital number, since it uses as much as digits as its factorization.

16030503253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123754.

The product of its (nonzero) digits is 8100, while the sum is 28.

The spelling of 16030503253 in words is "sixteen billion, thirty million, five hundred three thousand, two hundred fifty-three".