550813555 has 8 divisors (see below), whose sum is σ = 661230000. Its totient is φ = 440481696.

The previous prime is 550813537. The next prime is 550813579. The reversal of 550813555 is 555318055.

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 550813555 - 2¹³ = 550805363 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 5805 + ... + 33694.

It is an arithmetic number, because the mean of its divisors is an integer number (82653750).

Almost surely, 2^550813555 is an apocalyptic number.

550813555 is a deficient number, since it is larger than the sum of its proper divisors (110416445).

550813555 is a wasteful number, since it uses less digits than its factorization.

550813555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42293.

The product of its (nonzero) digits is 75000, while the sum is 37.

The square root of 550813555 is about 23469.4174405757. The cubic root of 550813555 is about 819.7250491026.

It can be divided in two parts, 550813 and 555, that added together give a cube (551368 = 82³).

The spelling of 550813555 in words is "five hundred fifty million, eight hundred thirteen thousand, five hundred fifty-five".