255320004 has 12 divisors (see below), whose sum is σ = 595746704. Its totient is φ = 85106664.

The previous prime is 255320003. The next prime is 255320029. The reversal of 255320004 is 400023552.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (255320003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10638322 + ... + 10638345.

Almost surely, 2^255320004 is an apocalyptic number.

It is an amenable number.

255320004 is an abundant number, since it is smaller than the sum of its proper divisors (340426700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255320004 is a wasteful number, since it uses less digits than its factorization.

255320004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21276674 (or 21276672 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 255320004 is about 15978.7359950654. The cubic root of 255320004 is about 634.3977210398.

Adding to 255320004 its reverse (400023552), we get a palindrome (655343556).

The spelling of 255320004 in words is "two hundred fifty-five million, three hundred twenty thousand, four".