5547478129 has 4 divisors (see below), whose sum is σ = 5567948800. Its totient is φ = 5527007460.

The previous prime is 5547478099. The next prime is 5547478171. The reversal of 5547478129 is 9218747455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9218747455 = 5 ⋅1843749491.

It is a cyclic number.

It is not a de Polignac number, because 5547478129 - 2²⁷ = 5413260401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5547478229) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10234929 + ... + 10235470.

It is an arithmetic number, because the mean of its divisors is an integer number (1391987200).

Almost surely, 2^5547478129 is an apocalyptic number.

It is an amenable number.

5547478129 is a deficient number, since it is larger than the sum of its proper divisors (20470671).

5547478129 is a wasteful number, since it uses less digits than its factorization.

5547478129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470670.

The product of its digits is 2822400, while the sum is 52.

The square root of 5547478129 is about 74481.3945156775. The cubic root of 5547478129 is about 1770.2388443156.

The spelling of 5547478129 in words is "five billion, five hundred forty-seven million, four hundred seventy-eight thousand, one hundred twenty-nine".