255163405 has 16 divisors (see below), whose sum is σ = 350202240. Its totient is φ = 174837312.

The previous prime is 255163399. The next prime is 255163411. The reversal of 255163405 is 504361552.

It is an interprime number because it is at equal distance from previous prime (255163399) and next prime (255163411).

It is a cyclic number.

It is not a de Polignac number, because 255163405 - 2¹⁹ = 254639117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76666 + ... + 79924.

It is an arithmetic number, because the mean of its divisors is an integer number (21887640).

Almost surely, 2^255163405 is an apocalyptic number.

It is an amenable number.

255163405 is a deficient number, since it is larger than the sum of its proper divisors (95038835).

255163405 is a wasteful number, since it uses less digits than its factorization.

255163405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 255163405 is about 15973.8350122943. The cubic root of 255163405 is about 634.2679931622.

It can be divided in two parts, 2551 and 63405, that added together give a palindrome (65956).

The spelling of 255163405 in words is "two hundred fifty-five million, one hundred sixty-three thousand, four hundred five".