55123123541 has 4 divisors (see below), whose sum is σ = 55384370784. Its totient is φ = 54861876300.

The previous prime is 55123123493. The next prime is 55123123547. The reversal of 55123123541 is 14532132155.

55123123541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55123123541 - 2¹⁰ = 55123122517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55123123498 and 55123123507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55123123547) 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, 130623305 + ... + 130623726.

It is an arithmetic number, because the mean of its divisors is an integer number (13846092696).

Almost surely, 2^55123123541 is an apocalyptic number.

It is an amenable number.

55123123541 is a deficient number, since it is larger than the sum of its proper divisors (261247243).

55123123541 is a wasteful number, since it uses less digits than its factorization.

55123123541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261247242.

The product of its digits is 18000, while the sum is 32.

Adding to 55123123541 its reverse (14532132155), we get a palindrome (69655255696).

The spelling of 55123123541 in words is "fifty-five billion, one hundred twenty-three million, one hundred twenty-three thousand, five hundred forty-one".