53687087 has 4 divisors (see below), whose sum is σ = 53725056. Its totient is φ = 53649120.

The previous prime is 53687077. The next prime is 53687099. The reversal of 53687087 is 78078635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53687087 - 2¹⁰ = 53686063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53687077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16778 + ... + 19719.

It is an arithmetic number, because the mean of its divisors is an integer number (13431264).

Almost surely, 2^53687087 is an apocalyptic number.

53687087 is a deficient number, since it is larger than the sum of its proper divisors (37969).

53687087 is a wasteful number, since it uses less digits than its factorization.

53687087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37968.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 53687087 is about 7327.1472620659. The cubic root of 53687087 is about 377.2448156233.

The spelling of 53687087 in words is "fifty-three million, six hundred eighty-seven thousand, eighty-seven".