255421400333 has 4 divisors (see below), whose sum is σ = 278641527648. Its totient is φ = 232201273020.

The previous prime is 255421400329. The next prime is 255421400359. The reversal of 255421400333 is 333004124552.

255421400333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255421400333 - 2² = 255421400329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255421400333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255421400393) 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, 11610063641 + ... + 11610063662.

It is an arithmetic number, because the mean of its divisors is an integer number (69660381912).

Almost surely, 2^255421400333 is an apocalyptic number.

It is an amenable number.

255421400333 is a deficient number, since it is larger than the sum of its proper divisors (23220127315).

255421400333 is a wasteful number, since it uses less digits than its factorization.

255421400333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23220127314.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 255421400333 its reverse (333004124552), we get a palindrome (588425524885).

The spelling of 255421400333 in words is "two hundred fifty-five billion, four hundred twenty-one million, four hundred thousand, three hundred thirty-three".