550318402 has 4 divisors (see below), whose sum is σ = 825477606. Its totient is φ = 275159200.

The previous prime is 550318361. The next prime is 550318403. The reversal of 550318402 is 204813055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204813055 = 5 ⋅40962611.

It can be written as a sum of positive squares in only one way, i.e., 318943881 + 231374521 = 17859^2 + 15211^2 .

It is not an unprimeable number, because it can be changed into a prime (550318403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137579599 + ... + 137579602.

Almost surely, 2^550318402 is an apocalyptic number.

550318402 is a deficient number, since it is larger than the sum of its proper divisors (275159204).

550318402 is a wasteful number, since it uses less digits than its factorization.

550318402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275159203.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 550318402 is about 23458.8661703843. The cubic root of 550318402 is about 819.4793452712.

The spelling of 550318402 in words is "five hundred fifty million, three hundred eighteen thousand, four hundred two".