54012523206440 has 16 divisors (see below), whose sum is σ = 121528177214580. Its totient is φ = 21605009282560.

The previous prime is 54012523206427. The next prime is 54012523206517. The reversal of 54012523206440 is 4460232521045.

It can be written as a sum of positive squares in 2 ways, for example, as 49652119373476 + 4360403832964 = 7046426^2 + 2088158^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54012523206394 and 54012523206403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675156540041 + ... + 675156540120.

Almost surely, 2^{54012523206440} is an apocalyptic number.

It is an amenable number.

54012523206440 is an abundant number, since it is smaller than the sum of its proper divisors (67515654008140).

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

54012523206440 is a wasteful number, since it uses less digits than its factorization.

54012523206440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350313080172 (or 1350313080168 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 54012523206440 its reverse (4460232521045), we get a palindrome (58472755727485).

The spelling of 54012523206440 in words is "fifty-four trillion, twelve billion, five hundred twenty-three million, two hundred six thousand, four hundred forty".