55213143545 has 32 divisors (see below), whose sum is σ = 77359546368. Its totient is φ = 37041686208.

The previous prime is 55213143493. The next prime is 55213143569. The reversal of 55213143545 is 54534131255.

It is a cyclic number.

It is not a de Polignac number, because 55213143545 - 2¹⁴ = 55213127161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55213143499 and 55213143508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7370792 + ... + 7378278.

It is an arithmetic number, because the mean of its divisors is an integer number (2417485824).

Almost surely, 2^55213143545 is an apocalyptic number.

It is an amenable number.

55213143545 is a deficient number, since it is larger than the sum of its proper divisors (22146402823).

55213143545 is a wasteful number, since it uses less digits than its factorization.

55213143545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12029.

The product of its digits is 180000, while the sum is 38.

The spelling of 55213143545 in words is "fifty-five billion, two hundred thirteen million, one hundred forty-three thousand, five hundred forty-five".