55525100 has 18 divisors (see below), whose sum is σ = 120489684. Its totient is φ = 22210000.

The previous prime is 55525081. The next prime is 55525103. The reversal of 55525100 is 152555.

It is not an unprimeable number, because it can be changed into a prime (55525103) 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, 277526 + ... + 277725.

Almost surely, 2^55525100 is an apocalyptic number.

55525100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55525100 is an abundant number, since it is smaller than the sum of its proper divisors (64964584).

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

55525100 is a wasteful number, since it uses less digits than its factorization.

55525100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555265 (or 555258 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 55525100 is about 7451.5166241511. The cubic root of 55525100 is about 381.5016756229.

Adding to 55525100 its reverse (152555), we get a palindrome (55677655).

The spelling of 55525100 in words is "fifty-five million, five hundred twenty-five thousand, one hundred".