255403430 has 16 divisors (see below), whose sum is σ = 459967680. Its totient is φ = 102107712.

The previous prime is 255403411. The next prime is 255403441. The reversal of 255403430 is 34304552.

It is a self number, because there is not a number n which added to its sum of digits gives 255403430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17411 + ... + 28529.

It is an arithmetic number, because the mean of its divisors is an integer number (28747980).

Almost surely, 2^255403430 is an apocalyptic number.

255403430 is a deficient number, since it is larger than the sum of its proper divisors (204564250).

255403430 is a wasteful number, since it uses less digits than its factorization.

255403430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13423.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 255403430 is about 15981.3463137497. The cubic root of 255403430 is about 634.4668101568.

Adding to 255403430 its reverse (34304552), we get a palindrome (289707982).

The spelling of 255403430 in words is "two hundred fifty-five million, four hundred three thousand, four hundred thirty".