53316047 has 4 divisors (see below), whose sum is σ = 55634160. Its totient is φ = 50997936.

The previous prime is 53316041. The next prime is 53316059. The reversal of 53316047 is 74061335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53316047 - 2¹⁰ = 53315023 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 (53316041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159022 + ... + 1159067.

It is an arithmetic number, because the mean of its divisors is an integer number (13908540).

Almost surely, 2^53316047 is an apocalyptic number.

53316047 is a deficient number, since it is larger than the sum of its proper divisors (2318113).

53316047 is a wasteful number, since it uses less digits than its factorization.

53316047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318112.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 53316047 is about 7301.7838231490. The cubic root of 53316047 is about 376.3737395017.

The spelling of 53316047 in words is "fifty-three million, three hundred sixteen thousand, forty-seven".