550403345402 has 4 divisors (see below), whose sum is σ = 825605018106. Its totient is φ = 275201672700.

The previous prime is 550403345377. The next prime is 550403345423. The reversal of 550403345402 is 204543304055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 314002208881 + 236401136521 = 560359^2 + 486211^2 .

It is a super-3 number, since 3×550403345402³ (a number of 36 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 137600836349 + ... + 137600836352.

Almost surely, 2^550403345402 is an apocalyptic number.

550403345402 is a deficient number, since it is larger than the sum of its proper divisors (275201672704).

550403345402 is a wasteful number, since it uses less digits than its factorization.

550403345402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275201672703.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 550403345402 its reverse (204543304055), we get a palindrome (754946649457).

The spelling of 550403345402 in words is "five hundred fifty billion, four hundred three million, three hundred forty-five thousand, four hundred two".