255404619 has 6 divisors (see below), whose sum is σ = 368917796. Its totient is φ = 170269740.

The previous prime is 255404609. The next prime is 255404647. The reversal of 255404619 is 916404552.

It is not a de Polignac number, because 255404619 - 2⁵ = 255404587 is a prime.

It is a super-2 number, since 2×255404619² = 130463038813070322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255404609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14189137 + ... + 14189154.

Almost surely, 2^255404619 is an apocalyptic number.

255404619 is a deficient number, since it is larger than the sum of its proper divisors (113513177).

255404619 is a wasteful number, since it uses less digits than its factorization.

255404619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28378297 (or 28378294 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 255404619 is about 15981.3835133257. The cubic root of 255404619 is about 634.4677947166.

The spelling of 255404619 in words is "two hundred fifty-five million, four hundred four thousand, six hundred nineteen".