52618247 has 8 divisors (see below), whose sum is σ = 60778512. Its totient is φ = 45020800.

The previous prime is 52618231. The next prime is 52618261. The reversal of 52618247 is 74281625.

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

It is not a de Polignac number, because 52618247 - 2⁴ = 52618231 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 (52618297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140504 + ... + 140877.

It is an arithmetic number, because the mean of its divisors is an integer number (7597314).

Almost surely, 2^52618247 is an apocalyptic number.

52618247 is a deficient number, since it is larger than the sum of its proper divisors (8160265).

52618247 is a wasteful number, since it uses less digits than its factorization.

52618247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281409.

The product of its digits is 26880, while the sum is 35.

The square root of 52618247 is about 7253.8436018431. The cubic root of 52618247 is about 374.7245313245.

The spelling of 52618247 in words is "fifty-two million, six hundred eighteen thousand, two hundred forty-seven".