255150240221 has 8 divisors (see below), whose sum is σ = 257061759360. Its totient is φ = 253239805728.

The previous prime is 255150240199. The next prime is 255150240251. The reversal of 255150240221 is 122042051552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255150240221 is a prime.

It is a super-2 number, since 2×255150240221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255150240251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204185 + ... + 742961.

It is an arithmetic number, because the mean of its divisors is an integer number (32132719920).

Almost surely, 2^255150240221 is an apocalyptic number.

It is an amenable number.

255150240221 is a deficient number, since it is larger than the sum of its proper divisors (1911519139).

255150240221 is a wasteful number, since it uses less digits than its factorization.

255150240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542323.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 255150240221 its reverse (122042051552), we get a palindrome (377192291773).

The spelling of 255150240221 in words is "two hundred fifty-five billion, one hundred fifty million, two hundred forty thousand, two hundred twenty-one".