42521056560 has 120 divisors (see below), whose sum is σ = 144213988464. Its totient is φ = 11226662400.

The previous prime is 42521056553. The next prime is 42521056577. The reversal of 42521056560 is 6565012524.

42521056560 is a `hidden beast` number, since 4 + 25 + 2 + 10 + 565 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219642 + ... + 365081.

Almost surely, 2^42521056560 is an apocalyptic number.

42521056560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42521056560 is an abundant number, since it is smaller than the sum of its proper divisors (101692931904).

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

42521056560 is a wasteful number, since it uses less digits than its factorization.

42521056560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584843 (or 584834 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 42521056560 in words is "forty-two billion, five hundred twenty-one million, fifty-six thousand, five hundred sixty".