55140354123 has 32 divisors (see below), whose sum is σ = 77851501056. Its totient is φ = 34645214208.

The previous prime is 55140354079. The next prime is 55140354127. The reversal of 55140354123 is 32145304155.

55140354123 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 55140354123 - 2⁸ = 55140353867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55140354127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1501165 + ... + 1537457.

It is an arithmetic number, because the mean of its divisors is an integer number (2432859408).

Almost surely, 2^55140354123 is an apocalyptic number.

55140354123 is a deficient number, since it is larger than the sum of its proper divisors (22711146933).

55140354123 is a wasteful number, since it uses less digits than its factorization.

55140354123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36643.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 55140354123 its reverse (32145304155), we get a palindrome (87285658278).

The spelling of 55140354123 in words is "fifty-five billion, one hundred forty million, three hundred fifty-four thousand, one hundred twenty-three".