53538361 has 2 divisors, whose sum is σ = 53538362. Its totient is φ = 53538360.

The previous prime is 53538349. The next prime is 53538377. The reversal of 53538361 is 16383535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37896336 + 15642025 = 6156^2 + 3955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53538361 is a prime.

It is not a weakly prime, because it can be changed into another prime (53538341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26769180 + 26769181.

It is an arithmetic number, because the mean of its divisors is an integer number (26769181).

Almost surely, 2^53538361 is an apocalyptic number.

It is an amenable number.

53538361 is a deficient number, since it is larger than the sum of its proper divisors (1).

53538361 is an equidigital number, since it uses as much as digits as its factorization.

53538361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 53538361 is about 7316.9912532406. The cubic root of 53538361 is about 376.8961408329.

The spelling of 53538361 in words is "fifty-three million, five hundred thirty-eight thousand, three hundred sixty-one".