255421315 has 8 divisors (see below), whose sum is σ = 306598320. Its totient is φ = 204275232.

The previous prime is 255421303. The next prime is 255421319. The reversal of 255421315 is 513124552.

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 255421315 - 2¹¹ = 255419267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255421319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18612 + ... + 29278.

It is an arithmetic number, because the mean of its divisors is an integer number (38324790).

Almost surely, 2^255421315 is an apocalyptic number.

255421315 is a deficient number, since it is larger than the sum of its proper divisors (51177005).

255421315 is a wasteful number, since it uses less digits than its factorization.

255421315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15461.

The product of its digits is 6000, while the sum is 28.

The square root of 255421315 is about 15981.9058625685. The cubic root of 255421315 is about 634.4816196343.

Adding to 255421315 its reverse (513124552), we get a palindrome (768545867).

The spelling of 255421315 in words is "two hundred fifty-five million, four hundred twenty-one thousand, three hundred fifteen".