255104440 has 32 divisors (see below), whose sum is σ = 583400160. Its totient is φ = 100368000.

The previous prime is 255104389. The next prime is 255104441. The reversal of 255104440 is 44401552.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255104441) 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, 49836 + ... + 54715.

It is an arithmetic number, because the mean of its divisors is an integer number (18231255).

Almost surely, 2^255104440 is an apocalyptic number.

255104440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255104440 is an abundant number, since it is smaller than the sum of its proper divisors (328295720).

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

255104440 is a wasteful number, since it uses less digits than its factorization.

255104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104623 (or 104619 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 255104440 is about 15971.9892311509. The cubic root of 255104440 is about 634.2191323241.

Adding to 255104440 its reverse (44401552), we get a palindrome (299505992).

The spelling of 255104440 in words is "two hundred fifty-five million, one hundred four thousand, four hundred forty".