55550550303 has 10 divisors (see below), whose sum is σ = 82982920944. Its totient is φ = 37033700148.

The previous prime is 55550550281. The next prime is 55550550397. The reversal of 55550550303 is 30305505555.

55550550303 is a `hidden beast` number, since 5 + 55 + 50 + 550 + 3 + 0 + 3 = 666.

55550550303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55550550303 - 2⁶ = 55550550239 is a prime.

It is a super-2 number, since 2×55550550303² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550550403) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 342904551 + ... + 342904712.

Almost surely, 2^55550550303 is an apocalyptic number.

55550550303 is a deficient number, since it is larger than the sum of its proper divisors (27432370641).

55550550303 is an equidigital number, since it uses as much as digits as its factorization.

55550550303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685809275 (or 685809266 counting only the distinct ones).

The product of its (nonzero) digits is 140625, while the sum is 36.

The spelling of 55550550303 in words is "fifty-five billion, five hundred fifty million, five hundred fifty thousand, three hundred three".