55625100 has 72 divisors (see below), whose sum is σ = 162104208. Its totient is φ = 14726400.

The previous prime is 55625093. The next prime is 55625113. The reversal of 55625100 is 152655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46510 + ... + 47690.

Almost surely, 2^55625100 is an apocalyptic number.

55625100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55625100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81052104).

55625100 is an abundant number, since it is smaller than the sum of its proper divisors (106479108).

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

55625100 is a wasteful number, since it uses less digits than its factorization.

55625100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55625100 is about 7458.2236491004. The cubic root of 55625100 is about 381.7305648267.

Adding to 55625100 its reverse (152655), we get a palindrome (55777755).

The spelling of 55625100 in words is "fifty-five million, six hundred twenty-five thousand, one hundred".