53287442 has 24 divisors (see below), whose sum is σ = 89186916. Its totient is φ = 23736384.

The previous prime is 53287441. The next prime is 53287453. The reversal of 53287442 is 24478235.

It can be written as a sum of positive squares in 6 ways, for example, as 31933801 + 21353641 = 5651^2 + 4621^2 .

It is not an unprimeable number, because it can be changed into a prime (53287441) 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 in 11 ways as a sum of consecutive naturals, for example, 20648 + ... + 23084.

Almost surely, 2^53287442 is an apocalyptic number.

53287442 is a deficient number, since it is larger than the sum of its proper divisors (35899474).

53287442 is a wasteful number, since it uses less digits than its factorization.

53287442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510 (or 2481 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 53287442 is about 7299.8247924180. The cubic root of 53287442 is about 376.3064170762.

The spelling of 53287442 in words is "fifty-three million, two hundred eighty-seven thousand, four hundred forty-two".