53385047 has 4 divisors (see below), whose sum is σ = 55706160. Its totient is φ = 51063936.

The previous prime is 53385037. The next prime is 53385067. The reversal of 53385047 is 74058335.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53385047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53384998 and 53385016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53385037) 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, 1160522 + ... + 1160567.

It is an arithmetic number, because the mean of its divisors is an integer number (13926540).

Almost surely, 2^53385047 is an apocalyptic number.

53385047 is a deficient number, since it is larger than the sum of its proper divisors (2321113).

53385047 is a wasteful number, since it uses less digits than its factorization.

53385047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321112.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 53385047 is about 7306.5071682713. The cubic root of 53385047 is about 376.5360333103.

The spelling of 53385047 in words is "fifty-three million, three hundred eighty-five thousand, forty-seven".