55100075423 has 4 divisors (see below), whose sum is σ = 55103672688. Its totient is φ = 55096478160.

The previous prime is 55100075413. The next prime is 55100075461. The reversal of 55100075423 is 32457000155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55100075423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55100075423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55100075413) 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, 1775558 + ... + 1806323.

It is an arithmetic number, because the mean of its divisors is an integer number (13775918172).

Almost surely, 2^55100075423 is an apocalyptic number.

55100075423 is a deficient number, since it is larger than the sum of its proper divisors (3597265).

55100075423 is a wasteful number, since it uses less digits than its factorization.

55100075423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597264.

The product of its (nonzero) digits is 21000, while the sum is 32.

Adding to 55100075423 its reverse (32457000155), we get a palindrome (87557075578).

The spelling of 55100075423 in words is "fifty-five billion, one hundred million, seventy-five thousand, four hundred twenty-three".