53493731 has 2 divisors, whose sum is σ = 53493732. Its totient is φ = 53493730.

The previous prime is 53493709. The next prime is 53493751. The reversal of 53493731 is 13739435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53493731 - 2¹⁸ = 53231587 is a prime.

It is a super-2 number, since 2×53493731² = 5723158512600722, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 53493691 and 53493700.

It is not a weakly prime, because it can be changed into another prime (53493751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26746865 + 26746866.

It is an arithmetic number, because the mean of its divisors is an integer number (26746866).

Almost surely, 2^53493731 is an apocalyptic number.

53493731 is a deficient number, since it is larger than the sum of its proper divisors (1).

53493731 is an equidigital number, since it uses as much as digits as its factorization.

53493731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 35.

The square root of 53493731 is about 7313.9408665917. The cubic root of 53493731 is about 376.7913838536.

The spelling of 53493731 in words is "fifty-three million, four hundred ninety-three thousand, seven hundred thirty-one".