4521552840 has 320 divisors, whose sum is σ = 17612876160. Its totient is φ = 1018967040.

The previous prime is 4521552839. The next prime is 4521552869. The reversal of 4521552840 is 482551254.

4521552840 is a `hidden beast` number, since 4 + 5 + 21 + 552 + 84 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 4521552795 and 4521552804.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1654275 + ... + 1657005.

It is an arithmetic number, because the mean of its divisors is an integer number (55040238).

Almost surely, 2^4521552840 is an apocalyptic number.

4521552840 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 4521552840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8806438080).

4521552840 is an abundant number, since it is smaller than the sum of its proper divisors (13091323320).

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

4521552840 is a wasteful number, since it uses less digits than its factorization.

4521552840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2821 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 4521552840 is about 67242.4928151835. The cubic root of 4521552840 is about 1653.5952020100.

The spelling of 4521552840 in words is "four billion, five hundred twenty-one million, five hundred fifty-two thousand, eight hundred forty".