54155420123 has 8 divisors (see below), whose sum is σ = 62046255840. Its totient is φ = 46303171200.

The previous prime is 54155420119. The next prime is 54155420129. The reversal of 54155420123 is 32102455145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54155420123 - 2² = 54155420119 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 54155420123.

It is not an unprimeable number, because it can be changed into a prime (54155420129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9643688 + ... + 9649301.

It is an arithmetic number, because the mean of its divisors is an integer number (7755781980).

Almost surely, 2^54155420123 is an apocalyptic number.

54155420123 is a deficient number, since it is larger than the sum of its proper divisors (7890835717).

54155420123 is a wasteful number, since it uses less digits than its factorization.

54155420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19293397.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 54155420123 its reverse (32102455145), we get a palindrome (86257875268).

The spelling of 54155420123 in words is "fifty-four billion, one hundred fifty-five million, four hundred twenty thousand, one hundred twenty-three".