255249641 has 8 divisors (see below), whose sum is σ = 262838184. Its totient is φ = 247726080.

The previous prime is 255249637. The next prime is 255249649. The reversal of 255249641 is 146942552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5736025 + 249513616 = 2395^2 + 15796^2 .

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 255249641 - 2² = 255249637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255249595 and 255249604.

It is not an unprimeable number, because it can be changed into a prime (255249649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8216 + ... + 24041.

It is an arithmetic number, because the mean of its divisors is an integer number (32854773).

Almost surely, 2^255249641 is an apocalyptic number.

It is an amenable number.

255249641 is a deficient number, since it is larger than the sum of its proper divisors (7588543).

255249641 is a wasteful number, since it uses less digits than its factorization.

255249641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32491.

The product of its digits is 86400, while the sum is 38.

The square root of 255249641 is about 15976.5340734466. The cubic root of 255249641 is about 634.3394383262.

The spelling of 255249641 in words is "two hundred fifty-five million, two hundred forty-nine thousand, six hundred forty-one".