255251222 has 4 divisors (see below), whose sum is σ = 382876836. Its totient is φ = 127625610.

The previous prime is 255251207. The next prime is 255251237. The reversal of 255251222 is 222152552.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (255251207) and next prime (255251237).

It is a junction number, because it is equal to n+sod(n) for n = 255251191 and 255251200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63812804 + ... + 63812807.

It is an arithmetic number, because the mean of its divisors is an integer number (95719209).

Almost surely, 2^255251222 is an apocalyptic number.

255251222 is a deficient number, since it is larger than the sum of its proper divisors (127625614).

255251222 is a wasteful number, since it uses less digits than its factorization.

255251222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127625613.

The product of its digits is 4000, while the sum is 26.

The square root of 255251222 is about 15976.5835521866. The cubic root of 255251222 is about 634.3407480095.

The spelling of 255251222 in words is "two hundred fifty-five million, two hundred fifty-one thousand, two hundred twenty-two".