16031325253 has 4 divisors (see below), whose sum is σ = 16422333228. Its totient is φ = 15640317280.

The previous prime is 16031325241. The next prime is 16031325281. The reversal of 16031325253 is 35252313061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 520615489 + 15510709764 = 22817^2 + 124542^2 .

It is a cyclic number.

It is not a de Polignac number, because 16031325253 - 2¹⁷ = 16031194181 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 (16031325203) 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, 195503926 + ... + 195504007.

It is an arithmetic number, because the mean of its divisors is an integer number (4105583307).

Almost surely, 2^16031325253 is an apocalyptic number.

It is an amenable number.

16031325253 is a deficient number, since it is larger than the sum of its proper divisors (391007975).

16031325253 is an equidigital number, since it uses as much as digits as its factorization.

16031325253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391007974.

The product of its (nonzero) digits is 16200, while the sum is 31.

The spelling of 16031325253 in words is "sixteen billion, thirty-one million, three hundred twenty-five thousand, two hundred fifty-three".