550805403 has 16 divisors (see below), whose sum is σ = 767312640. Its totient is φ = 350791584.

The previous prime is 550805401. The next prime is 550805413. The reversal of 550805403 is 304508055.

It is not a de Polignac number, because 550805403 - 2¹ = 550805401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550805401) 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, 54625 + ... + 63917.

It is an arithmetic number, because the mean of its divisors is an integer number (47957040).

Almost surely, 2^550805403 is an apocalyptic number.

550805403 is a deficient number, since it is larger than the sum of its proper divisors (216507237).

550805403 is a wasteful number, since it uses less digits than its factorization.

550805403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 550805403 is about 23469.2437671093. The cubic root of 550805403 is about 819.7210051259.

The spelling of 550805403 in words is "five hundred fifty million, eight hundred five thousand, four hundred three".