55255434321 has 8 divisors (see below), whose sum is σ = 73676738560. Its totient is φ = 36835543152.

The previous prime is 55255434319. The next prime is 55255434323. The reversal of 55255434321 is 12343455255.

55255434321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55255434319) and next prime (55255434323).

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

It is not a de Polignac number, because 55255434321 - 2¹ = 55255434319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55255434321.

It is not an unprimeable number, because it can be changed into a prime (55255434323) 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, 258385 + ... + 421038.

It is an arithmetic number, because the mean of its divisors is an integer number (9209592320).

Almost surely, 2^55255434321 is an apocalyptic number.

It is an amenable number.

55255434321 is a deficient number, since it is larger than the sum of its proper divisors (18421304239).

55255434321 is a wasteful number, since it uses less digits than its factorization.

55255434321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706535.

The product of its digits is 360000, while the sum is 39.

Adding to 55255434321 its reverse (12343455255), we get a palindrome (67598889576).

The spelling of 55255434321 in words is "fifty-five billion, two hundred fifty-five million, four hundred thirty-four thousand, three hundred twenty-one".