52439287 has 8 divisors (see below), whose sum is σ = 56054880. Its totient is φ = 48935040.

The previous prime is 52439281. The next prime is 52439293. The reversal of 52439287 is 78293425.

It is an interprime number because it is at equal distance from previous prime (52439281) and next prime (52439293).

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 52439287 - 2¹¹ = 52437239 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 (52439281) 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, 26862 + ... + 28747.

It is an arithmetic number, because the mean of its divisors is an integer number (7006860).

Almost surely, 2^52439287 is an apocalyptic number.

52439287 is a deficient number, since it is larger than the sum of its proper divisors (3615593).

52439287 is a wasteful number, since it uses less digits than its factorization.

52439287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55673.

The product of its digits is 120960, while the sum is 40.

The square root of 52439287 is about 7241.4975661116. The cubic root of 52439287 is about 374.2992233963.

The spelling of 52439287 in words is "fifty-two million, four hundred thirty-nine thousand, two hundred eighty-seven".