53749273 has 2 divisors, whose sum is σ = 53749274. Its totient is φ = 53749272.

The previous prime is 53749249. The next prime is 53749301. The reversal of 53749273 is 37294735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28869129 + 24880144 = 5373^2 + 4988^2 .

It is a cyclic number.

It is not a de Polignac number, because 53749273 - 2¹³ = 53741081 is a prime.

It is not a weakly prime, because it can be changed into another prime (53740273) 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, 26874636 + 26874637.

It is an arithmetic number, because the mean of its divisors is an integer number (26874637).

Almost surely, 2^53749273 is an apocalyptic number.

It is an amenable number.

53749273 is a deficient number, since it is larger than the sum of its proper divisors (1).

53749273 is an equidigital number, since it uses as much as digits as its factorization.

53749273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 40.

The square root of 53749273 is about 7331.3895681515. The cubic root of 53749273 is about 377.3904142241.

The spelling of 53749273 in words is "fifty-three million, seven hundred forty-nine thousand, two hundred seventy-three".