53385847 has 4 divisors (see below), whose sum is σ = 53806336. Its totient is φ = 52965360.

The previous prime is 53385841. The next prime is 53385853. The reversal of 53385847 is 74858335.

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

It is an interprime number because it is at equal distance from previous prime (53385841) and next prime (53385853).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53385847 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 (53385841) 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, 210054 + ... + 210307.

It is an arithmetic number, because the mean of its divisors is an integer number (13451584).

Almost surely, 2^53385847 is an apocalyptic number.

53385847 is a deficient number, since it is larger than the sum of its proper divisors (420489).

53385847 is a wasteful number, since it uses less digits than its factorization.

53385847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420488.

The product of its digits is 403200, while the sum is 43.

The square root of 53385847 is about 7306.5619137868. The cubic root of 53385847 is about 376.5379141573.

The spelling of 53385847 in words is "fifty-three million, three hundred eighty-five thousand, eight hundred forty-seven".