255012214551421 has 8 divisors (see below), whose sum is σ = 257275274557824. Its totient is φ = 252749265330240.

The previous prime is 255012214551359. The next prime is 255012214551463. The reversal of 255012214551421 is 124155412210552.

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

It is a cyclic number.

It is not a de Polignac number, because 255012214551421 - 2¹⁷ = 255012214420349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255012214551491) 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, 23068741 + ... + 32282986.

It is an arithmetic number, because the mean of its divisors is an integer number (32159409319728).

Almost surely, 2^{255012214551421} is an apocalyptic number.

It is an amenable number.

255012214551421 is a deficient number, since it is larger than the sum of its proper divisors (2263060006403).

255012214551421 is a wasteful number, since it uses less digits than its factorization.

255012214551421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55392611.

The product of its (nonzero) digits is 160000, while the sum is 40.

Adding to 255012214551421 its reverse (124155412210552), we get a palindrome (379167626761973).

The spelling of 255012214551421 in words is "two hundred fifty-five trillion, twelve billion, two hundred fourteen million, five hundred fifty-one thousand, four hundred twenty-one".