5500557778 has 8 divisors (see below), whose sum is σ = 8609568768. Its totient is φ = 2630701524.

The previous prime is 5500557773. The next prime is 5500557841. The reversal of 5500557778 is 8777550055.

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

It is a super-2 number, since 2×5500557778² = 60512271738232594568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5500557773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59788626 + ... + 59788717.

It is an arithmetic number, because the mean of its divisors is an integer number (1076196096).

Almost surely, 2^5500557778 is an apocalyptic number.

5500557778 is a deficient number, since it is larger than the sum of its proper divisors (3109010990).

5500557778 is a wasteful number, since it uses less digits than its factorization.

5500557778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119577368.

The product of its (nonzero) digits is 1715000, while the sum is 49.

The square root of 5500557778 is about 74165.7453141273. The cubic root of 5500557778 is about 1765.2338368773.

The spelling of 5500557778 in words is "five billion, five hundred million, five hundred fifty-seven thousand, seven hundred seventy-eight".