16255261 has 6 divisors (see below), whose sum is σ = 17867486. Its totient is φ = 14777400.

The previous prime is 16255249. The next prime is 16255271.

16255261 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 15163236 + 1092025 = 3894^2 + 1045^2 .

It is not a de Polignac number, because 16255261 - 2⁷ = 16255133 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 (16255201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67050 + ... + 67291.

Almost surely, 2^16255261 is an apocalyptic number.

16255261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16255261 is a deficient number, since it is larger than the sum of its proper divisors (1612225).

16255261 is a wasteful number, since it uses less digits than its factorization.

16255261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134363 (or 134352 counting only the distinct ones).

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

The square root of 16255261 is about 4031.7813680804. The cubic root of 16255261 is about 253.3171825268.

It can be divided in two parts, 1625 and 5261, that added together give a palindrome (6886).

The spelling of 16255261 in words is "sixteen million, two hundred fifty-five thousand, two hundred sixty-one".