55055213442 has 12 divisors (see below), whose sum is σ = 119286295830. Its totient is φ = 18351737808.

The previous prime is 55055213431. The next prime is 55055213461. The reversal of 55055213442 is 24431255055.

55055213442 is a `hidden beast` number, since 5 + 50 + 552 + 13 + 4 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38427368841 + 16627844601 = 196029^2 + 128949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55055213397 and 55055213406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1529311467 + ... + 1529311502.

Almost surely, 2^55055213442 is an apocalyptic number.

55055213442 is an abundant number, since it is smaller than the sum of its proper divisors (64231082388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55055213442 is a wasteful number, since it uses less digits than its factorization.

55055213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058622977 (or 3058622974 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 55055213442 its reverse (24431255055), we get a palindrome (79486468497).

The spelling of 55055213442 in words is "fifty-five billion, fifty-five million, two hundred thirteen thousand, four hundred forty-two".