255240415 has 8 divisors (see below), whose sum is σ = 306397728. Its totient is φ = 204119520.

The previous prime is 255240379. The next prime is 255240437. The reversal of 255240415 is 514042552.

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

It is not a de Polignac number, because 255240415 - 2⁹ = 255239903 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, 9945 + ... + 24685.

It is an arithmetic number, because the mean of its divisors is an integer number (38299716).

Almost surely, 2^255240415 is an apocalyptic number.

255240415 is a deficient number, since it is larger than the sum of its proper divisors (51157313).

255240415 is a wasteful number, since it uses less digits than its factorization.

255240415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18209.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 255240415 is about 15976.2453348714. The cubic root of 255240415 is about 634.3317954997.

Adding to 255240415 its reverse (514042552), we get a palindrome (769282967).

The spelling of 255240415 in words is "two hundred fifty-five million, two hundred forty thousand, four hundred fifteen".