53538949 has 2 divisors, whose sum is σ = 53538950. Its totient is φ = 53538948.

The previous prime is 53538943. The next prime is 53538971. The reversal of 53538949 is 94983535.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50665924 + 2873025 = 7118^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 53538949 - 2²³ = 45150341 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53538899 and 53538908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53538943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26769474 + 26769475.

It is an arithmetic number, because the mean of its divisors is an integer number (26769475).

Almost surely, 2^53538949 is an apocalyptic number.

It is an amenable number.

53538949 is a deficient number, since it is larger than the sum of its proper divisors (1).

53538949 is an equidigital number, since it uses as much as digits as its factorization.

53538949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 46.

The square root of 53538949 is about 7317.0314335802. The cubic root of 53538949 is about 376.8975206169.

The spelling of 53538949 in words is "fifty-three million, five hundred thirty-eight thousand, nine hundred forty-nine".