255355906 has 8 divisors (see below), whose sum is σ = 412498044. Its totient is φ = 117856560.

The previous prime is 255355901. The next prime is 255355957. The reversal of 255355906 is 609553552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 254562025 + 793881 = 15955^2 + 891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (255355901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4910665 + ... + 4910716.

Almost surely, 2^255355906 is an apocalyptic number.

255355906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

255355906 is a deficient number, since it is larger than the sum of its proper divisors (157142138).

255355906 is a wasteful number, since it uses less digits than its factorization.

255355906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821396.

The product of its (nonzero) digits is 202500, while the sum is 40.

The square root of 255355906 is about 15979.8593861148. The cubic root of 255355906 is about 634.4274550718.

The spelling of 255355906 in words is "two hundred fifty-five million, three hundred fifty-five thousand, nine hundred six".