52081387 has 8 divisors (see below), whose sum is σ = 55210032. Its totient is φ = 48960000.

The previous prime is 52081363. The next prime is 52081391. The reversal of 52081387 is 78318025.

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

It is a de Polignac number, because none of the positive numbers 2^k-52081387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52081397) 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, 22012 + ... + 24262.

It is an arithmetic number, because the mean of its divisors is an integer number (6901254).

Almost surely, 2^52081387 is an apocalyptic number.

52081387 is a deficient number, since it is larger than the sum of its proper divisors (3128645).

52081387 is a wasteful number, since it uses less digits than its factorization.

52081387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 52081387 is about 7216.7435176816. The cubic root of 52081387 is about 373.4457435912.

The spelling of 52081387 in words is "fifty-two million, eighty-one thousand, three hundred eighty-seven".