550156555 has 8 divisors (see below), whose sum is σ = 710971632. Its totient is φ = 406269408.

The previous prime is 550156531. The next prime is 550156583. The reversal of 550156555 is 555651055.

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

It is a cyclic number.

It is not a de Polignac number, because 550156555 - 2⁹ = 550156043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4231909 + ... + 4232038.

It is an arithmetic number, because the mean of its divisors is an integer number (88871454).

Almost surely, 2^550156555 is an apocalyptic number.

550156555 is a deficient number, since it is larger than the sum of its proper divisors (160815077).

550156555 is a wasteful number, since it uses less digits than its factorization.

550156555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8463965.

The product of its (nonzero) digits is 93750, while the sum is 37.

The square root of 550156555 is about 23455.4163254460. The cubic root of 550156555 is about 819.3990019177.

The spelling of 550156555 in words is "five hundred fifty million, one hundred fifty-six thousand, five hundred fifty-five".