53308973 has 2 divisors, whose sum is σ = 53308974. Its totient is φ = 53308972.

The previous prime is 53308967. The next prime is 53309021. The reversal of 53308973 is 37980335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27227524 + 26081449 = 5218^2 + 5107^2 .

It is a cyclic number.

It is not a de Polignac number, because 53308973 - 2²⁴ = 36531757 is a prime.

It is equal to p_3187487 and since 53308973 and 3187487 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53308903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26654486 + 26654487.

It is an arithmetic number, because the mean of its divisors is an integer number (26654487).

Almost surely, 2^53308973 is an apocalyptic number.

It is an amenable number.

53308973 is a deficient number, since it is larger than the sum of its proper divisors (1).

53308973 is an equidigital number, since it uses as much as digits as its factorization.

53308973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 53308973 is about 7301.2994049005. The cubic root of 53308973 is about 376.3570929463.

The spelling of 53308973 in words is "fifty-three million, three hundred eight thousand, nine hundred seventy-three".