255320224251 has 4 divisors (see below), whose sum is σ = 340426965672. Its totient is φ = 170213482832.

The previous prime is 255320224217. The next prime is 255320224307. The reversal of 255320224251 is 152422023552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255320224251 - 2¹⁰ = 255320223227 is a prime.

It is a super-2 number, since 2×255320224251² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255320224351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42553370706 + ... + 42553370711.

It is an arithmetic number, because the mean of its divisors is an integer number (85106741418).

Almost surely, 2^255320224251 is an apocalyptic number.

255320224251 is a deficient number, since it is larger than the sum of its proper divisors (85106741421).

255320224251 is an equidigital number, since it uses as much as digits as its factorization.

255320224251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85106741420.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 255320224251 in words is "two hundred fifty-five billion, three hundred twenty million, two hundred twenty-four thousand, two hundred fifty-one".