4537451520 has 528 divisors, whose sum is σ = 18669426048. Its totient is φ = 1035141120.

The previous prime is 4537451441. The next prime is 4537451531. The reversal of 4537451520 is 251547354.

4537451520 is a `hidden beast` number, since 4 + 53 + 74 + 515 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8708860 + ... + 8709380.

Almost surely, 2^4537451520 is an apocalyptic number.

4537451520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4537451520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9334713024).

4537451520 is an abundant number, since it is smaller than the sum of its proper divisors (14131974528).

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

4537451520 is an equidigital number, since it uses as much as digits as its factorization.

4537451520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 4537451520 is about 67360.6080732649. The cubic root of 4537451520 is about 1655.5310581451.

Adding to 4537451520 its reverse (251547354), we get a palindrome (4788998874).

The spelling of 4537451520 in words is "four billion, five hundred thirty-seven million, four hundred fifty-one thousand, five hundred twenty".