2520566064 has 60 divisors (see below), whose sum is σ = 7469037576. Its totient is φ = 790765056.

The previous prime is 2520566053. The next prime is 2520566089. The reversal of 2520566064 is 4606650252.

2520566064 is a `hidden beast` number, since 25 + 20 + 5 + 6 + 606 + 4 = 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 11 ways as a sum of consecutive naturals, for example, 512374 + ... + 517269.

Almost surely, 2^2520566064 is an apocalyptic number.

2520566064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2520566064 is an abundant number, since it is smaller than the sum of its proper divisors (4948471512).

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

2520566064 is a wasteful number, since it uses less digits than its factorization.

2520566064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029674 (or 1029665 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2520566064 is about 50205.2394078546. The cubic root of 2520566064 is about 1360.9203084617.

The spelling of 2520566064 in words is "two billion, five hundred twenty million, five hundred sixty-six thousand, sixty-four".