53904973 has 4 divisors (see below), whose sum is σ = 54037180. Its totient is φ = 53772768.

The previous prime is 53904959. The next prime is 53905003. The reversal of 53904973 is 37940935.

53904973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49252324 + 4652649 = 7018^2 + 2157^2 .

It is a cyclic number.

It is not a de Polignac number, because 53904973 - 2⁵ = 53904941 is a prime.

It is a super-2 number, since 2×53904973² = 5811492228261458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53904923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65490 + ... + 66307.

It is an arithmetic number, because the mean of its divisors is an integer number (13509295).

Almost surely, 2^53904973 is an apocalyptic number.

It is an amenable number.

53904973 is a deficient number, since it is larger than the sum of its proper divisors (132207).

53904973 is a wasteful number, since it uses less digits than its factorization.

53904973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132206.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 53904973 is about 7342.0006129120. Note that the first 3 decimals coincide. The cubic root of 53904973 is about 377.7544690124.

The spelling of 53904973 in words is "fifty-three million, nine hundred four thousand, nine hundred seventy-three".