55543101 has 4 divisors (see below), whose sum is σ = 74057472. Its totient is φ = 37028732.

The previous prime is 55543093. The next prime is 55543109. The reversal of 55543101 is 10134555.

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 an interprime number because it is at equal distance from previous prime (55543093) and next prime (55543109).

It is a cyclic number.

It is not a de Polignac number, because 55543101 - 2³ = 55543093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55543109) 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, 9257181 + ... + 9257186.

It is an arithmetic number, because the mean of its divisors is an integer number (18514368).

Almost surely, 2^55543101 is an apocalyptic number.

It is an amenable number.

55543101 is a deficient number, since it is larger than the sum of its proper divisors (18514371).

55543101 is a wasteful number, since it uses less digits than its factorization.

55543101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18514370.

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

The square root of 55543101 is about 7452.7244011838. The cubic root of 55543101 is about 381.5428982392.

Adding to 55543101 its reverse (10134555), we get a palindrome (65677656).

The spelling of 55543101 in words is "fifty-five million, five hundred forty-three thousand, one hundred one".