255446401 has 4 divisors (see below), whose sum is σ = 291938752. Its totient is φ = 218954052.

The previous prime is 255446383. The next prime is 255446407. The reversal of 255446401 is 104644552.

It is a happy number.

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 255446401 - 2¹⁵ = 255413633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255446407) 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, 18246165 + ... + 18246178.

It is an arithmetic number, because the mean of its divisors is an integer number (72984688).

Almost surely, 2^255446401 is an apocalyptic number.

It is an amenable number.

255446401 is a deficient number, since it is larger than the sum of its proper divisors (36492351).

255446401 is an equidigital number, since it uses as much as digits as its factorization.

255446401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36492350.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 255446401 is about 15982.6906683449. The cubic root of 255446401 is about 634.5023906558.

The spelling of 255446401 in words is "two hundred fifty-five million, four hundred forty-six thousand, four hundred one".