255221002 has 8 divisors (see below), whose sum is σ = 388223712. Its totient is φ = 125813100.

The previous prime is 255220981. The next prime is 255221027. The reversal of 255221002 is 200122552.

255221002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898524 + ... + 898807.

It is an arithmetic number, because the mean of its divisors is an integer number (48527964).

Almost surely, 2^255221002 is an apocalyptic number.

255221002 is a deficient number, since it is larger than the sum of its proper divisors (133002710).

255221002 is a wasteful number, since it uses less digits than its factorization.

255221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797404.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 255221002 is about 15975.6377650471. The cubic root of 255221002 is about 634.3157131519.

Adding to 255221002 its reverse (200122552), we get a palindrome (455343554).

The spelling of 255221002 in words is "two hundred fifty-five million, two hundred twenty-one thousand, two".