550781673 has 16 divisors (see below), whose sum is σ = 807695616. Its totient is φ = 331729920.

The previous prime is 550781669. The next prime is 550781731. The reversal of 550781673 is 376187055.

It is not a de Polignac number, because 550781673 - 2² = 550781669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550781773) 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, 148408 + ... + 152073.

It is an arithmetic number, because the mean of its divisors is an integer number (50480976).

Almost surely, 2^550781673 is an apocalyptic number.

It is an amenable number.

550781673 is a deficient number, since it is larger than the sum of its proper divisors (256913943).

550781673 is a wasteful number, since it uses less digits than its factorization.

550781673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300544.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 550781673 is about 23468.7382063885. The cubic root of 550781673 is about 819.7092331167.

The spelling of 550781673 in words is "five hundred fifty million, seven hundred eighty-one thousand, six hundred seventy-three".