52065987 has 4 divisors (see below), whose sum is σ = 69421320. Its totient is φ = 34710656.

The previous prime is 52065971. The next prime is 52066037. The reversal of 52065987 is 78956025.

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 52065987 - 2⁴ = 52065971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52065967) 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, 8677662 + ... + 8677667.

It is an arithmetic number, because the mean of its divisors is an integer number (17355330).

Almost surely, 2^52065987 is an apocalyptic number.

52065987 is a deficient number, since it is larger than the sum of its proper divisors (17355333).

52065987 is a wasteful number, since it uses less digits than its factorization.

52065987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17355332.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 52065987 is about 7215.6764755635. The cubic root of 52065987 is about 373.4089317746.

The spelling of 52065987 in words is "fifty-two million, sixty-five thousand, nine hundred eighty-seven".