54121544103505 has 4 divisors (see below), whose sum is σ = 64945852924212. Its totient is φ = 43297235282800.

The previous prime is 54121544103467. The next prime is 54121544103527. The reversal of 54121544103505 is 50530144512145.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7259742860881 + 46861801242624 = 2694391^2 + 6845568^2 .

It is not a de Polignac number, because 54121544103505 - 2³¹ = 54119396619857 is a prime.

It is a super-2 number, since 2×54121544103505² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5412154410346 + ... + 5412154410355.

It is an arithmetic number, because the mean of its divisors is an integer number (16236463231053).

Almost surely, 2^{54121544103505} is an apocalyptic number.

It is an amenable number.

54121544103505 is a deficient number, since it is larger than the sum of its proper divisors (10824308820707).

54121544103505 is a wasteful number, since it uses less digits than its factorization.

54121544103505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824308820706.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 54121544103505 in words is "fifty-four trillion, one hundred twenty-one billion, five hundred forty-four million, one hundred three thousand, five hundred five".