54513477431545 has 16 divisors (see below), whose sum is σ = 71365157214912. Its totient is φ = 39645021245760.

The previous prime is 54513477431521. The next prime is 54513477431551.

54513477431545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54513477431545 - 2¹¹ = 54513477429497 is a prime.

It is a super-2 number, since 2×54513477431545² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54513477431545.

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, 12376527 + ... + 16192756.

It is an arithmetic number, because the mean of its divisors is an integer number (4460322325932).

Almost surely, 2^{54513477431545} is an apocalyptic number.

54513477431545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54513477431545 is a deficient number, since it is larger than the sum of its proper divisors (16851679783367).

54513477431545 is a wasteful number, since it uses less digits than its factorization.

54513477431545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28603992.

The product of its digits is 70560000, while the sum is 58.

The spelling of 54513477431545 in words is "fifty-four trillion, five hundred thirteen billion, four hundred seventy-seven million, four hundred thirty-one thousand, five hundred forty-five".