53332249 has 4 divisors (see below), whose sum is σ = 53882164. Its totient is φ = 52782336.

The previous prime is 53332243. The next prime is 53332261. The reversal of 53332249 is 94223335.

53332249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94223335 = 5 ⋅18844667.

It can be written as a sum of positive squares in 2 ways, for example, as 21206025 + 32126224 = 4605^2 + 5668^2 .

It is a cyclic number.

It is not a de Polignac number, because 53332249 - 2³ = 53332241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53332249.

It is not an unprimeable number, because it can be changed into a prime (53332241) 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 in 3 ways as a sum of consecutive naturals, for example, 274812 + ... + 275005.

It is an arithmetic number, because the mean of its divisors is an integer number (13470541).

Almost surely, 2^53332249 is an apocalyptic number.

It is an amenable number.

53332249 is a deficient number, since it is larger than the sum of its proper divisors (549915).

53332249 is an equidigital number, since it uses as much as digits as its factorization.

53332249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549914.

The product of its digits is 19440, while the sum is 31.

The square root of 53332249 is about 7302.8931937966. The cubic root of 53332249 is about 376.4118605433.

The spelling of 53332249 in words is "fifty-three million, three hundred thirty-two thousand, two hundred forty-nine".