402605255 has 16 divisors (see below), whose sum is σ = 522383904. Its totient is φ = 296112000.

The previous prime is 402605249. The next prime is 402605261. The reversal of 402605255 is 552506204.

It is an interprime number because it is at equal distance from previous prime (402605249) and next prime (402605261).

It is not a de Polignac number, because 402605255 - 2¹⁴ = 402588871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3977 + ... + 28653.

It is an arithmetic number, because the mean of its divisors is an integer number (32648994).

Almost surely, 2^402605255 is an apocalyptic number.

402605255 is a deficient number, since it is larger than the sum of its proper divisors (119778649).

402605255 is a wasteful number, since it uses less digits than its factorization.

402605255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24946.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 402605255 is about 20065.0256665672. The cubic root of 402605255 is about 738.4024795948.

The spelling of 402605255 in words is "four hundred two million, six hundred five thousand, two hundred fifty-five".