55022101 has 4 divisors (see below), whose sum is σ = 56192832. Its totient is φ = 53851372.

The previous prime is 55022087. The next prime is 55022113. The reversal of 55022101 is 10122055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55022101 - 2⁷ = 55021973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55022701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585295 + ... + 585388.

It is an arithmetic number, because the mean of its divisors is an integer number (14048208).

Almost surely, 2^55022101 is an apocalyptic number.

It is an amenable number.

55022101 is a deficient number, since it is larger than the sum of its proper divisors (1170731).

55022101 is a wasteful number, since it uses less digits than its factorization.

55022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170730.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 55022101 is about 7417.6883865528. The cubic root of 55022101 is about 380.3461780742.

Adding to 55022101 its reverse (10122055), we get a palindrome (65144156).

The spelling of 55022101 in words is "fifty-five million, twenty-two thousand, one hundred one".