16255231 has 4 divisors (see below), whose sum is σ = 16294264. Its totient is φ = 16216200.

The previous prime is 16255223. The next prime is 16255249. The reversal of 16255231 is 13255261.

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

It is a cyclic number.

It is not a de Polignac number, because 16255231 - 2³ = 16255223 is a prime.

It is a super-2 number, since 2×16255231² = 528465069726722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16255196 and 16255205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16255201) 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, 18885 + ... + 19726.

It is an arithmetic number, because the mean of its divisors is an integer number (4073566).

Almost surely, 2^16255231 is an apocalyptic number.

16255231 is a deficient number, since it is larger than the sum of its proper divisors (39033).

16255231 is an equidigital number, since it uses as much as digits as its factorization.

16255231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39032.

The product of its digits is 1800, while the sum is 25.

The square root of 16255231 is about 4031.7776476388. Note that the first 3 decimals coincide. The cubic root of 16255231 is about 253.3170266897.

The spelling of 16255231 in words is "sixteen million, two hundred fifty-five thousand, two hundred thirty-one".