55210101 has 32 divisors (see below), whose sum is σ = 82280448. Its totient is φ = 32766720.

The previous prime is 55210091. The next prime is 55210123. The reversal of 55210101 is 10101255.

55210101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55210101 - 2⁵ = 55210069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55210201) 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, 73936 + ... + 74678.

It is an arithmetic number, because the mean of its divisors is an integer number (2571264).

Almost surely, 2^55210101 is an apocalyptic number.

55210101 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

55210101 is a deficient number, since it is larger than the sum of its proper divisors (27070347).

55210101 is a wasteful number, since it uses less digits than its factorization.

55210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

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

The square root of 55210101 is about 7430.3499917568. The cubic root of 55210101 is about 380.7788756914.

Adding to 55210101 its reverse (10101255), we get a palindrome (65311356).

The spelling of 55210101 in words is "fifty-five million, two hundred ten thousand, one hundred one".