255355401 has 16 divisors (see below), whose sum is σ = 401666048. Its totient is φ = 141210000.

The previous prime is 255355369. The next prime is 255355409. The reversal of 255355401 is 104553552.

It is a happy number.

It is not a de Polignac number, because 255355401 - 2⁵ = 255355369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255355409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195475 + ... + 196776.

It is an arithmetic number, because the mean of its divisors is an integer number (25104128).

Almost surely, 2^255355401 is an apocalyptic number.

255355401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255355401 is a deficient number, since it is larger than the sum of its proper divisors (146310647).

255355401 is a wasteful number, since it uses less digits than its factorization.

255355401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392292.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 255355401 is about 15979.8435849667. The cubic root of 255355401 is about 634.4270368502.

The spelling of 255355401 in words is "two hundred fifty-five million, three hundred fifty-five thousand, four hundred one".