5120545440 has 192 divisors, whose sum is σ = 16630064640. Its totient is φ = 1323417600.

The previous prime is 5120545433. The next prime is 5120545459. The reversal of 5120545440 is 445450215.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5120545398 and 5120545407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7121401 + ... + 7122119.

It is an arithmetic number, because the mean of its divisors is an integer number (86614920).

Almost surely, 2^5120545440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5120545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8315032320).

5120545440 is an abundant number, since it is smaller than the sum of its proper divisors (11509519200).

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

5120545440 is a wasteful number, since it uses less digits than its factorization.

5120545440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 5120545440 is about 71557.9865563586. The cubic root of 5120545440 is about 1723.6089537511.

Adding to 5120545440 its reverse (445450215), we get a palindrome (5565995655).

The spelling of 5120545440 in words is "five billion, one hundred twenty million, five hundred forty-five thousand, four hundred forty".