55399143211 has 8 divisors (see below), whose sum is σ = 56353192560. Its totient is φ = 54445596672.

The previous prime is 55399143157. The next prime is 55399143259. The reversal of 55399143211 is 11234199355.

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 55399143211 - 2¹⁵ = 55399110443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55399143271) 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, 100011 + ... + 347563.

It is an arithmetic number, because the mean of its divisors is an integer number (7044149070).

Almost surely, 2^55399143211 is an apocalyptic number.

55399143211 is a deficient number, since it is larger than the sum of its proper divisors (954049349).

55399143211 is a wasteful number, since it uses less digits than its factorization.

55399143211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251405.

The product of its digits is 145800, while the sum is 43.

The spelling of 55399143211 in words is "fifty-five billion, three hundred ninety-nine million, one hundred forty-three thousand, two hundred eleven".