8520412560 has 240 divisors, whose sum is σ = 30126696768. Its totient is φ = 1975424000.

The previous prime is 8520412543. The next prime is 8520412567. The reversal of 8520412560 is 652140258.

It is a tau number, because it is divible by the number of its divisors (240).

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 (8520412567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1393510 + ... + 1399610.

Almost surely, 2^8520412560 is an apocalyptic number.

8520412560 is a gapful number since it is divisible by the number (80) 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 8520412560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15063348384).

8520412560 is an abundant number, since it is smaller than the sum of its proper divisors (21606284208).

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

8520412560 is a wasteful number, since it uses less digits than its factorization.

8520412560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6145 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 8520412560 is about 92306.0808397800. The cubic root of 8520412560 is about 2042.4599122105.

The spelling of 8520412560 in words is "eight billion, five hundred twenty million, four hundred twelve thousand, five hundred sixty".