255404120 has 32 divisors (see below), whose sum is σ = 575115120. Its totient is φ = 102080640.

The previous prime is 255404089. The next prime is 255404143. The reversal of 255404120 is 21404552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93494 + ... + 96186.

Almost surely, 2^255404120 is an apocalyptic number.

255404120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255404120 is an abundant number, since it is smaller than the sum of its proper divisors (319711000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255404120 is a wasteful number, since it uses less digits than its factorization.

255404120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 255404120 is about 15981.3679014032. The cubic root of 255404120 is about 634.4673815165.

Adding to 255404120 its reverse (21404552), we get a palindrome (276808672).

The spelling of 255404120 in words is "two hundred fifty-five million, four hundred four thousand, one hundred twenty".