55101102 has 64 divisors (see below), whose sum is σ = 137203200. Its totient is φ = 14394240.

The previous prime is 55101071. The next prime is 55101107. The reversal of 55101102 is 20110155.

55101102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55101102² = 6072262883228808, which contains 22 as substring.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21952 + ... + 24332.

It is an arithmetic number, because the mean of its divisors is an integer number (2143800).

Almost surely, 2^55101102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55101102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68601600).

55101102 is an abundant number, since it is smaller than the sum of its proper divisors (82102098).

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

55101102 is a wasteful number, since it uses less digits than its factorization.

55101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 55101102 is about 7423.0116529614. The cubic root of 55101102 is about 380.5281253187.

Adding to 55101102 its reverse (20110155), we get a palindrome (75211257).

The spelling of 55101102 in words is "fifty-five million, one hundred one thousand, one hundred two".