255420319 has 8 divisors (see below), whose sum is σ = 318446208. Its totient is φ = 199028760.

The previous prime is 255420251. The next prime is 255420337. The reversal of 255420319 is 913024552.

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

It is not a de Polignac number, because 255420319 - 2¹³ = 255412127 is a prime.

It is a super-2 number, since 2×255420319² = 130479078716123522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255420379) 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 7 ways as a sum of consecutive naturals, for example, 1658497 + ... + 1658650.

It is an arithmetic number, because the mean of its divisors is an integer number (39805776).

Almost surely, 2^255420319 is an apocalyptic number.

255420319 is a deficient number, since it is larger than the sum of its proper divisors (63025889).

255420319 is a wasteful number, since it uses less digits than its factorization.

255420319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317165.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 255420319 is about 15981.8747022995. The cubic root of 255420319 is about 634.4807949256.

The spelling of 255420319 in words is "two hundred fifty-five million, four hundred twenty thousand, three hundred nineteen".