54243504534545 has 32 divisors (see below), whose sum is σ = 71450423740800. Its totient is φ = 39349375937536.

The previous prime is 54243504534509. The next prime is 54243504534607. The reversal of 54243504534545 is 54543540534245.

It is a cyclic number.

It is not a de Polignac number, because 54243504534545 - 2¹⁸ = 54243504272401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22409315 + ... + 24711624.

It is an arithmetic number, because the mean of its divisors is an integer number (2232825741900).

Almost surely, 2^{54243504534545} is an apocalyptic number.

It is an amenable number.

54243504534545 is a deficient number, since it is larger than the sum of its proper divisors (17206919206255).

54243504534545 is a wasteful number, since it uses less digits than its factorization.

54243504534545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47121457.

The product of its (nonzero) digits is 57600000, while the sum is 53.

The spelling of 54243504534545 in words is "fifty-four trillion, two hundred forty-three billion, five hundred four million, five hundred thirty-four thousand, five hundred forty-five".