255211154421 has 8 divisors (see below), whose sum is σ = 340321265760. Its totient is φ = 170120906352.

The previous prime is 255211154417. The next prime is 255211154431. The reversal of 255211154421 is 124451112552.

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

It is not a de Polignac number, because 255211154421 - 2² = 255211154417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255211154411) 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, 4935811 + ... + 4987248.

It is an arithmetic number, because the mean of its divisors is an integer number (42540158220).

Almost surely, 2^255211154421 is an apocalyptic number.

It is an amenable number.

255211154421 is a deficient number, since it is larger than the sum of its proper divisors (85110111339).

255211154421 is an equidigital number, since it uses as much as digits as its factorization.

255211154421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9931635.

The product of its digits is 16000, while the sum is 33.

Adding to 255211154421 its reverse (124451112552), we get a palindrome (379662266973).

The spelling of 255211154421 in words is "two hundred fifty-five billion, two hundred eleven million, one hundred fifty-four thousand, four hundred twenty-one".