550507785 has 16 divisors (see below), whose sum is σ = 887245056. Its totient is φ = 291459968.

The previous prime is 550507781. The next prime is 550507799. The reversal of 550507785 is 587705055.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 550507785 - 2² = 550507781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550507781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131889 + ... + 135998.

It is an arithmetic number, because the mean of its divisors is an integer number (55452816).

Almost surely, 2^550507785 is an apocalyptic number.

It is an amenable number.

550507785 is a deficient number, since it is larger than the sum of its proper divisors (336737271).

550507785 is a wasteful number, since it uses less digits than its factorization.

550507785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268032.

The product of its (nonzero) digits is 245000, while the sum is 42.

The square root of 550507785 is about 23462.9023140787. The cubic root of 550507785 is about 819.5733379228.

It can be divided in two parts, 55050 and 7785, that added together give a triangular number (62835 = T₃₅₄).

The spelling of 550507785 in words is "five hundred fifty million, five hundred seven thousand, seven hundred eighty-five".