255398029 has 4 divisors (see below), whose sum is σ = 256466880. Its totient is φ = 254329180.

The previous prime is 255397999. The next prime is 255398051. The reversal of 255398029 is 920893552.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255398029 - 2²³ = 247009421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255398729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534067 + ... + 534544.

It is an arithmetic number, because the mean of its divisors is an integer number (64116720).

Almost surely, 2^255398029 is an apocalyptic number.

It is an amenable number.

255398029 is a deficient number, since it is larger than the sum of its proper divisors (1068851).

255398029 is a wasteful number, since it uses less digits than its factorization.

255398029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068850.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 255398029 is about 15981.1773346021. The cubic root of 255398029 is about 634.4623377823.

The spelling of 255398029 in words is "two hundred fifty-five million, three hundred ninety-eight thousand, twenty-nine".