550403454100 has 18 divisors (see below), whose sum is σ = 1194375495614. Its totient is φ = 220161381600.

The previous prime is 550403454091. The next prime is 550403454113. The reversal of 550403454100 is 1454304055.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 38440307844 + 511963146256 = 196062^2 + 715516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2752017171 + ... + 2752017370.

Almost surely, 2^550403454100 is an apocalyptic number.

550403454100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550403454100 is an abundant number, since it is smaller than the sum of its proper divisors (643972041514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550403454100 is a wasteful number, since it uses less digits than its factorization.

550403454100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504034555 (or 5504034548 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 550403454100 its reverse (1454304055), we get a palindrome (551857758155).

The spelling of 550403454100 in words is "five hundred fifty billion, four hundred three million, four hundred fifty-four thousand, one hundred".