255541551320 has 64 divisors (see below), whose sum is σ = 664134746400. Its totient is φ = 87458068480.

The previous prime is 255541551263. The next prime is 255541551341. The reversal of 255541551320 is 23155145552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17074175 + ... + 17089134.

Almost surely, 2^255541551320 is an apocalyptic number.

255541551320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255541551320 is an abundant number, since it is smaller than the sum of its proper divisors (408593195080).

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

255541551320 is a wasteful number, since it uses less digits than its factorization.

255541551320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34163348 (or 34163344 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 38.

Adding to 255541551320 its reverse (23155145552), we get a palindrome (278696696872).

The spelling of 255541551320 in words is "two hundred fifty-five billion, five hundred forty-one million, five hundred fifty-one thousand, three hundred twenty".