55206464042 has 4 divisors (see below), whose sum is σ = 82809696066. Its totient is φ = 27603232020.

The previous prime is 55206464029. The next prime is 55206464059. The reversal of 55206464042 is 24046460255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24046460255 = 5 ⋅4809292051.

It can be written as a sum of positive squares in only one way, i.e., 46616696281 + 8589767761 = 215909^2 + 92681^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55206463987 and 55206464005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13801616009 + ... + 13801616012.

Almost surely, 2^55206464042 is an apocalyptic number.

55206464042 is a deficient number, since it is larger than the sum of its proper divisors (27603232024).

55206464042 is a wasteful number, since it uses less digits than its factorization.

55206464042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27603232023.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 55206464042 in words is "fifty-five billion, two hundred six million, four hundred sixty-four thousand, forty-two".