53977393 has 2 divisors, whose sum is σ = 53977394. Its totient is φ = 53977392.

The previous prime is 53977379. The next prime is 53977403. The reversal of 53977393 is 39377935.

53977393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 4809249 = 7012^2 + 2193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53977393 is a prime.

It is not a weakly prime, because it can be changed into another prime (53917393) 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 as a sum of consecutive naturals, namely, 26988696 + 26988697.

It is an arithmetic number, because the mean of its divisors is an integer number (26988697).

Almost surely, 2^53977393 is an apocalyptic number.

It is an amenable number.

53977393 is a deficient number, since it is larger than the sum of its proper divisors (1).

53977393 is an equidigital number, since it uses as much as digits as its factorization.

53977393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 535815, while the sum is 46.

The square root of 53977393 is about 7346.9308558064. The cubic root of 53977393 is about 377.9235612446.

The spelling of 53977393 in words is "fifty-three million, nine hundred seventy-seven thousand, three hundred ninety-three".