53808973 has 4 divisors (see below), whose sum is σ = 54612160. Its totient is φ = 53005788.

The previous prime is 53808967. The next prime is 53808977. The reversal of 53808973 is 37980835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53808973 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 (53808977) 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, 401493 + ... + 401626.

It is an arithmetic number, because the mean of its divisors is an integer number (13653040).

Almost surely, 2^53808973 is an apocalyptic number.

It is an amenable number.

53808973 is a deficient number, since it is larger than the sum of its proper divisors (803187).

53808973 is an equidigital number, since it uses as much as digits as its factorization.

53808973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803186.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 53808973 is about 7335.4599719445. The cubic root of 53808973 is about 377.5300866332.

The spelling of 53808973 in words is "fifty-three million, eight hundred eight thousand, nine hundred seventy-three".