255421130221435 has 16 divisors (see below), whose sum is σ = 306573460934400. Its totient is φ = 204291503643136.

The previous prime is 255421130221427. The next prime is 255421130221489. The reversal of 255421130221435 is 534122031124552.

It is a cyclic number.

It is not a de Polignac number, because 255421130221435 - 2³ = 255421130221427 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903016311 + ... + 903299119.

It is an arithmetic number, because the mean of its divisors is an integer number (19160841308400).

Almost surely, 2^{255421130221435} is an apocalyptic number.

255421130221435 is a deficient number, since it is larger than the sum of its proper divisors (51152330712965).

255421130221435 is a wasteful number, since it uses less digits than its factorization.

255421130221435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322310.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 255421130221435 its reverse (534122031124552), we get a palindrome (789543161345987).

The spelling of 255421130221435 in words is "two hundred fifty-five trillion, four hundred twenty-one billion, one hundred thirty million, two hundred twenty-one thousand, four hundred thirty-five".