255320236 has 6 divisors (see below), whose sum is σ = 446810420. Its totient is φ = 127660116.

The previous prime is 255320231. The next prime is 255320257. The reversal of 255320236 is 632023552.

It is a super-2 number, since 2×255320236² = 130376845822191392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255320231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31915026 + ... + 31915033.

Almost surely, 2^255320236 is an apocalyptic number.

It is an amenable number.

255320236 is a deficient number, since it is larger than the sum of its proper divisors (191490184).

255320236 is a wasteful number, since it uses less digits than its factorization.

255320236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63830063 (or 63830061 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 255320236 is about 15978.7432547119. The cubic root of 255320236 is about 634.3979131912.

Adding to 255320236 its reverse (632023552), we get a palindrome (887343788).

The spelling of 255320236 in words is "two hundred fifty-five million, three hundred twenty thousand, two hundred thirty-six".