55503255100 has 18 divisors (see below), whose sum is σ = 120442063784. Its totient is φ = 22201302000.

The previous prime is 55503255053. The next prime is 55503255109. The reversal of 55503255100 is 155230555.

It is a happy number.

It is a super-2 number, since 2×55503255100² (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 (55503255109) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 277516176 + ... + 277516375.

Almost surely, 2^55503255100 is an apocalyptic number.

55503255100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55503255100 is an abundant number, since it is smaller than the sum of its proper divisors (64938808684).

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

55503255100 is a wasteful number, since it uses less digits than its factorization.

55503255100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555032565 (or 555032558 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

Adding to 55503255100 its reverse (155230555), we get a palindrome (55658485655).

The spelling of 55503255100 in words is "fifty-five billion, five hundred three million, two hundred fifty-five thousand, one hundred".