55333154545321 has 4 divisors (see below), whose sum is σ = 58245425837200. Its totient is φ = 52420883253444.

The previous prime is 55333154545307. The next prime is 55333154545391. The reversal of 55333154545321 is 12354545133355.

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 55333154545321 - 2¹⁵ = 55333154512553 is a prime.

It is a super-3 number, since 3×55333154545321³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55333154545391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456135645911 + ... + 1456135645948.

It is an arithmetic number, because the mean of its divisors is an integer number (14561356459300).

Almost surely, 2^{55333154545321} is an apocalyptic number.

It is an amenable number.

55333154545321 is a deficient number, since it is larger than the sum of its proper divisors (2912271291879).

55333154545321 is a wasteful number, since it uses less digits than its factorization.

55333154545321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912271291878.

The product of its digits is 8100000, while the sum is 49.

Adding to 55333154545321 its reverse (12354545133355), we get a palindrome (67687699678676).

The spelling of 55333154545321 in words is "fifty-five trillion, three hundred thirty-three billion, one hundred fifty-four million, five hundred forty-five thousand, three hundred twenty-one".