54513231345440 has 96 divisors (see below), whose sum is σ = 153585104037120. Its totient is φ = 17877631140864.

The previous prime is 54513231345421. The next prime is 54513231345467. The reversal of 54513231345440 is 4454313231545.

It is a junction number, because it is equal to n+sod(n) for n = 54513231345391 and 54513231345400.

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, 1058072675 + ... + 1058124194.

It is an arithmetic number, because the mean of its divisors is an integer number (1599844833720).

Almost surely, 2^{54513231345440} is an apocalyptic number.

It is an amenable number.

54513231345440 is an abundant number, since it is smaller than the sum of its proper divisors (99071872691680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54513231345440 is a wasteful number, since it uses less digits than its factorization.

54513231345440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116196914 (or 2116196906 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

Adding to 54513231345440 its reverse (4454313231545), we get a palindrome (58967544576985).

The spelling of 54513231345440 in words is "fifty-four trillion, five hundred thirteen billion, two hundred thirty-one million, three hundred forty-five thousand, four hundred forty".