54521533512545 has 16 divisors (see below), whose sum is σ = 71474311967040. Its totient is φ = 39596097652800.

The previous prime is 54521533512529. The next prime is 54521533512559.

54521533512545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54521533512545 - 2⁴ = 54521533512529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54521533512493 and 54521533512502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699044651 + ... + 699122640.

It is an arithmetic number, because the mean of its divisors is an integer number (4467144497940).

Almost surely, 2^{54521533512545} is an apocalyptic number.

54521533512545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54521533512545 is a deficient number, since it is larger than the sum of its proper divisors (16952778454495).

54521533512545 is a wasteful number, since it uses less digits than its factorization.

54521533512545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398168016.

The product of its digits is 9000000, while the sum is 50.

It can be divided in two parts, 5452153 and 3512545, that added together give a palindrome (8964698).

The spelling of 54521533512545 in words is "fifty-four trillion, five hundred twenty-one billion, five hundred thirty-three million, five hundred twelve thousand, five hundred forty-five".