5451317520 has 320 divisors, whose sum is σ = 18924503040. Its totient is φ = 1287014400.

The previous prime is 5451317519. The next prime is 5451317527. The reversal of 5451317520 is 257131545.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (5451317527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23804766 + ... + 23804994.

It is an arithmetic number, because the mean of its divisors is an integer number (59139072).

Almost surely, 2^5451317520 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 5451317520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9462251520).

5451317520 is an abundant number, since it is smaller than the sum of its proper divisors (13473185520).

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

5451317520 is a wasteful number, since it uses less digits than its factorization.

5451317520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 5451317520 is about 73833.0381333452. The cubic root of 5451317520 is about 1759.9506614957.

The spelling of 5451317520 in words is "five billion, four hundred fifty-one million, three hundred seventeen thousand, five hundred twenty".