255493019 has 8 divisors (see below), whose sum is σ = 274015440. Its totient is φ = 237478176.

The previous prime is 255493001. The next prime is 255493027. The reversal of 255493019 is 910394552.

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 255493019 - 2¹⁶ = 255427483 is a prime.

It is a super-2 number, since 2×255493019² = 130553365515468722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255493079) 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, 125852 + ... + 127865.

It is an arithmetic number, because the mean of its divisors is an integer number (34251930).

Almost surely, 2^255493019 is an apocalyptic number.

255493019 is a deficient number, since it is larger than the sum of its proper divisors (18522421).

255493019 is a wasteful number, since it uses less digits than its factorization.

255493019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253789.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 255493019 is about 15984.1489920483. The cubic root of 255493019 is about 634.5409864018.

The spelling of 255493019 in words is "two hundred fifty-five million, four hundred ninety-three thousand, nineteen".