52146647 has 8 divisors (see below), whose sum is σ = 60721056. Its totient is φ = 43853472.

The previous prime is 52146631. The next prime is 52146649. The reversal of 52146647 is 74664125.

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

It is not a de Polignac number, because 52146647 - 2⁴ = 52146631 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 (52146649) 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, 69908 + ... + 70649.

It is an arithmetic number, because the mean of its divisors is an integer number (7590132).

Almost surely, 2^52146647 is an apocalyptic number.

52146647 is a deficient number, since it is larger than the sum of its proper divisors (8574409).

52146647 is a wasteful number, since it uses less digits than its factorization.

52146647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140617.

The product of its digits is 40320, while the sum is 35.

The square root of 52146647 is about 7221.2635320974. The cubic root of 52146647 is about 373.6016591585.

The spelling of 52146647 in words is "fifty-two million, one hundred forty-six thousand, six hundred forty-seven".