53958393 has 14 divisors (see below), whose sum is σ = 80901674. Its totient is φ = 35971776.

The previous prime is 53958353. The next prime is 53958427. The reversal of 53958393 is 39385935.

It can be written as a sum of positive squares in only one way, i.e., 53538489 + 419904 = 7317^2 + 648^2 .

It is not a de Polignac number, because 53958393 - 2⁸ = 53958137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53958353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 36280 + ... + 37737.

It is an arithmetic number, because the mean of its divisors is an integer number (5778691).

Almost surely, 2^53958393 is an apocalyptic number.

It is an amenable number.

53958393 is a deficient number, since it is larger than the sum of its proper divisors (26943281).

53958393 is an frugal number, since it uses more digits than its factorization.

53958393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74035 (or 74020 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 53958393 is about 7345.6376850482. The cubic root of 53958393 is about 377.8792131083.

The spelling of 53958393 in words is "fifty-three million, nine hundred fifty-eight thousand, three hundred ninety-three".