255420365 has 8 divisors (see below), whose sum is σ = 313980408. Its totient is φ = 199352320.

The previous prime is 255420343. The next prime is 255420379. The reversal of 255420365 is 563024552.

It can be written as a sum of positive squares in 4 ways, for example, as 29278921 + 226141444 = 5411^2 + 15038^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255420365 - 2¹⁰ = 255419341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622772 + ... + 623181.

It is an arithmetic number, because the mean of its divisors is an integer number (39247551).

Almost surely, 2^255420365 is an apocalyptic number.

It is an amenable number.

255420365 is a deficient number, since it is larger than the sum of its proper divisors (58560043).

255420365 is a wasteful number, since it uses less digits than its factorization.

255420365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245999.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 255420365 is about 15981.8761414297. The cubic root of 255420365 is about 634.4808330146.

The spelling of 255420365 in words is "two hundred fifty-five million, four hundred twenty thousand, three hundred sixty-five".