53587561 has 8 divisors (see below), whose sum is σ = 55827200. Its totient is φ = 51379920.

The previous prime is 53587537. The next prime is 53587577. The reversal of 53587561 is 16578535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53587561 - 2⁵ = 53587529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53587511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551 + ... + 11308.

It is an arithmetic number, because the mean of its divisors is an integer number (6978400).

Almost surely, 2^53587561 is an apocalyptic number.

It is an amenable number.

53587561 is a deficient number, since it is larger than the sum of its proper divisors (2239639).

53587561 is a wasteful number, since it uses less digits than its factorization.

53587561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15999.

The product of its digits is 126000, while the sum is 40.

The square root of 53587561 is about 7320.3525188340. The cubic root of 53587561 is about 377.0115572213.

The spelling of 53587561 in words is "fifty-three million, five hundred eighty-seven thousand, five hundred sixty-one".