52887381 has 8 divisors (see below), whose sum is σ = 70690560. Its totient is φ = 35171232.

The previous prime is 52887353. The next prime is 52887383. The reversal of 52887381 is 18378825.

It is a happy number.

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

It is not a de Polignac number, because 52887381 - 2¹⁷ = 52756309 is a prime.

It is a super-2 number, since 2×52887381² = 5594150138078322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52887383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20325 + ... + 22778.

It is an arithmetic number, because the mean of its divisors is an integer number (8836320).

Almost surely, 2^52887381 is an apocalyptic number.

It is an amenable number.

52887381 is a deficient number, since it is larger than the sum of its proper divisors (17803179).

52887381 is a wasteful number, since it uses less digits than its factorization.

52887381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43515.

The product of its digits is 107520, while the sum is 42.

The square root of 52887381 is about 7272.3710713907. The cubic root of 52887381 is about 375.3623306867.

The spelling of 52887381 in words is "fifty-two million, eight hundred eighty-seven thousand, three hundred eighty-one".