255424215 has 32 divisors (see below), whose sum is σ = 415316160. Its totient is φ = 134030336.

The previous prime is 255424189. The next prime is 255424217. The reversal of 255424215 is 512424552.

It is a cyclic number.

It is not a de Polignac number, because 255424215 - 2¹³ = 255416023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255424217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390829 + ... + 391481.

It is an arithmetic number, because the mean of its divisors is an integer number (12978630).

Almost surely, 2^255424215 is an apocalyptic number.

255424215 is a deficient number, since it is larger than the sum of its proper divisors (159891945).

255424215 is a wasteful number, since it uses less digits than its factorization.

255424215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its digits is 16000, while the sum is 30.

The square root of 255424215 is about 15981.9965899133. The cubic root of 255424215 is about 634.4840208823.

Adding to 255424215 its reverse (512424552), we get a palindrome (767848767).

The spelling of 255424215 in words is "two hundred fifty-five million, four hundred twenty-four thousand, two hundred fifteen".