4568555520 has 504 divisors, whose sum is σ = 17412311124. Its totient is φ = 1146617856.

The previous prime is 4568555461. The next prime is 4568555531. The reversal of 4568555520 is 255558654.

4568555520 is a `hidden beast` number, since 45 + 6 + 8 + 55 + 552 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4541681664 + 26873856 = 67392^2 + 5184^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 268738552 + ... + 268738568.

Almost surely, 2^4568555520 is an apocalyptic number.

4568555520 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 4568555520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8706155562).

4568555520 is an abundant number, since it is smaller than the sum of its proper divisors (12843755604).

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

4568555520 is an frugal number, since it uses more digits than its factorization.

4568555520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 45.

The square root of 4568555520 is about 67591.0905371411. The cubic root of 4568555520 is about 1659.3053076160.

The spelling of 4568555520 in words is "four billion, five hundred sixty-eight million, five hundred fifty-five thousand, five hundred twenty".