255421316 has 6 divisors (see below), whose sum is σ = 446987310. Its totient is φ = 127710656.

The previous prime is 255421303. The next prime is 255421319. The reversal of 255421316 is 613124552.

It can be written as a sum of positive squares in only one way, i.e., 248377600 + 7043716 = 15760^2 + 2654^2 .

It is not an unprimeable number, because it can be changed into a prime (255421319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31927661 + ... + 31927668.

It is an arithmetic number, because the mean of its divisors is an integer number (74497885).

Almost surely, 2^255421316 is an apocalyptic number.

It is an amenable number.

255421316 is a deficient number, since it is larger than the sum of its proper divisors (191565994).

255421316 is a wasteful number, since it uses less digits than its factorization.

255421316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63855333 (or 63855331 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 255421316 is about 15981.9058938538. The cubic root of 255421316 is about 634.4816204623.

Adding to 255421316 its reverse (613124552), we get a palindrome (868545868).

The spelling of 255421316 in words is "two hundred fifty-five million, four hundred twenty-one thousand, three hundred sixteen".