53560521 has 20 divisors (see below), whose sum is σ = 91441152. Its totient is φ = 30605688.

The previous prime is 53560517. The next prime is 53560541. The reversal of 53560521 is 12506535.

53560521 is a `hidden beast` number, since 5 + 35 + 605 + 21 = 666.

It is not a de Polignac number, because 53560521 - 2² = 53560517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53560511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46665 + ... + 47798.

Almost surely, 2^53560521 is an apocalyptic number.

It is an amenable number.

53560521 is a deficient number, since it is larger than the sum of its proper divisors (37880631).

53560521 is an equidigital number, since it uses as much as digits as its factorization.

53560521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94482 (or 94473 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 53560521 is about 7318.5053801989. The cubic root of 53560521 is about 376.9481338728.

The spelling of 53560521 in words is "fifty-three million, five hundred sixty thousand, five hundred twenty-one".