55101100 has 36 divisors (see below), whose sum is σ = 124773264. Its totient is φ = 21081280.

The previous prime is 55101071. The next prime is 55101107. The reversal of 55101100 is 110155.

It is a super-2 number, since 2×55101100² = 6072262442420000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55101107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9679 + ... + 14278.

It is an arithmetic number, because the mean of its divisors is an integer number (3465924).

Almost surely, 2^55101100 is an apocalyptic number.

55101100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55101100 is an abundant number, since it is smaller than the sum of its proper divisors (69672164).

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

55101100 is a wasteful number, since it uses less digits than its factorization.

55101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23994 (or 23987 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 55101100 is about 7423.0115182451. The cubic root of 55101100 is about 380.5281207147.

Adding to 55101100 its reverse (110155), we get a palindrome (55211255).

The spelling of 55101100 in words is "fifty-five million, one hundred one thousand, one hundred".