255023121 has 8 divisors (see below), whose sum is σ = 346446720. Its totient is φ = 166807472.

The previous prime is 255023113. The next prime is 255023123. The reversal of 255023121 is 121320552.

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

It is a cyclic number.

It is not a de Polignac number, because 255023121 - 2³ = 255023113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255023123) 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 7 ways as a sum of consecutive naturals, for example, 801801 + ... + 802118.

It is an arithmetic number, because the mean of its divisors is an integer number (43305840).

Almost surely, 2^255023121 is an apocalyptic number.

It is an amenable number.

255023121 is a deficient number, since it is larger than the sum of its proper divisors (91423599).

255023121 is a wasteful number, since it uses less digits than its factorization.

255023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603975.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 255023121 is about 15969.4433528536. The cubic root of 255023121 is about 634.1517356837.

Adding to 255023121 its reverse (121320552), we get a palindrome (376343673).

The spelling of 255023121 in words is "two hundred fifty-five million, twenty-three thousand, one hundred twenty-one".