53005947 has 8 divisors (see below), whose sum is σ = 70711056. Its totient is φ = 35319072.

The previous prime is 53005913. The next prime is 53005951. The reversal of 53005947 is 74950035.

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

It is not a de Polignac number, because 53005947 - 2¹⁹ = 52481659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53045947) 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, 5233 + ... + 11549.

It is an arithmetic number, because the mean of its divisors is an integer number (8838882).

Almost surely, 2^53005947 is an apocalyptic number.

53005947 is a deficient number, since it is larger than the sum of its proper divisors (17705109).

53005947 is a wasteful number, since it uses less digits than its factorization.

53005947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 53005947 is about 7280.5183194605. The cubic root of 53005947 is about 375.6426243504.

The spelling of 53005947 in words is "fifty-three million, five thousand, nine hundred forty-seven".