403664531255 has 32 divisors (see below), whose sum is σ = 527567040000. Its totient is φ = 295333928064.

The previous prime is 403664531233. The next prime is 403664531297. The reversal of 403664531255 is 552135466304.

It is a cyclic number.

It is not a de Polignac number, because 403664531255 - 2¹⁶ = 403664465719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23516366 + ... + 23533524.

It is an arithmetic number, because the mean of its divisors is an integer number (16486470000).

Almost surely, 2^403664531255 is an apocalyptic number.

403664531255 is a deficient number, since it is larger than the sum of its proper divisors (123902508745).

403664531255 is a wasteful number, since it uses less digits than its factorization.

403664531255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25751.

The product of its (nonzero) digits is 1296000, while the sum is 44.

Adding to 403664531255 its reverse (552135466304), we get a palindrome (955799997559).

The spelling of 403664531255 in words is "four hundred three billion, six hundred sixty-four million, five hundred thirty-one thousand, two hundred fifty-five".