5547121442 has 8 divisors (see below), whose sum is σ = 8321127276. Its totient is φ = 2773412352.

The previous prime is 5547121409. The next prime is 5547121453. The reversal of 5547121442 is 2441217455.

It is a Cunningham number, because it is equal to 74479²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 5547121441 + 1 = 74479^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19343 + ... + 107090.

Almost surely, 2^5547121442 is an apocalyptic number.

5547121442 is a deficient number, since it is larger than the sum of its proper divisors (2774005834).

5547121442 is a wasteful number, since it uses less digits than its factorization.

5547121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148372.

The product of its digits is 44800, while the sum is 35.

The square root of 5547121442 is about 74479.0000067133. Note that the first 5 decimals coincide. The cubic root of 5547121442 is about 1770.2009030685.

Adding to 5547121442 its reverse (2441217455), we get a palindrome (7988338897).

The spelling of 5547121442 in words is "five billion, five hundred forty-seven million, one hundred twenty-one thousand, four hundred forty-two".