54355515220013 has 16 divisors (see below), whose sum is σ = 65390748232320. Its totient is φ = 44137871165376.

The previous prime is 54355515220009. The next prime is 54355515220049. The reversal of 54355515220013 is 31002251555345.

It is a cyclic number.

It is not a de Polignac number, because 54355515220013 - 2² = 54355515220009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54355515220313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11629295 + ... + 15618947.

It is an arithmetic number, because the mean of its divisors is an integer number (4086921764520).

Almost surely, 2^{54355515220013} is an apocalyptic number.

It is an amenable number.

54355515220013 is a deficient number, since it is larger than the sum of its proper divisors (11035233012307).

54355515220013 is a wasteful number, since it uses less digits than its factorization.

54355515220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092116.

The product of its (nonzero) digits is 450000, while the sum is 41.

Adding to 54355515220013 its reverse (31002251555345), we get a palindrome (85357766775358).

The spelling of 54355515220013 in words is "fifty-four trillion, three hundred fifty-five billion, five hundred fifteen million, two hundred twenty thousand, thirteen".