53805847 has 4 divisors (see below), whose sum is σ = 53824176. Its totient is φ = 53787520.

The previous prime is 53805841. The next prime is 53805887. The reversal of 53805847 is 74850835.

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 53805847 - 2³ = 53805839 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53805841) 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, 3658 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (13456044).

Almost surely, 2^53805847 is an apocalyptic number.

53805847 is a deficient number, since it is larger than the sum of its proper divisors (18329).

53805847 is a wasteful number, since it uses less digits than its factorization.

53805847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 53805847 is about 7335.2468942770. The cubic root of 53805847 is about 377.5227756970.

The spelling of 53805847 in words is "fifty-three million, eight hundred five thousand, eight hundred forty-seven".