52047447 has 8 divisors (see below), whose sum is σ = 69653760. Its totient is φ = 34569720.

The previous prime is 52047407. The next prime is 52047449. The reversal of 52047447 is 74474025.

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

It is not a de Polignac number, because 52047447 - 2¹² = 52043351 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52047449) 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, 31197 + ... + 32822.

It is an arithmetic number, because the mean of its divisors is an integer number (8706720).

Almost surely, 2^52047447 is an apocalyptic number.

52047447 is a deficient number, since it is larger than the sum of its proper divisors (17606313).

52047447 is a wasteful number, since it uses less digits than its factorization.

52047447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64293.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 52047447 is about 7214.3916583451. The cubic root of 52047447 is about 373.3646045412.

The spelling of 52047447 in words is "fifty-two million, forty-seven thousand, four hundred forty-seven".