53215303 has 2 divisors, whose sum is σ = 53215304. Its totient is φ = 53215302.

The previous prime is 53215297. The next prime is 53215343. The reversal of 53215303 is 30351235.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53215303 - 2⁵ = 53215271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53215343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26607651 + 26607652.

It is an arithmetic number, because the mean of its divisors is an integer number (26607652).

Almost surely, 2^53215303 is an apocalyptic number.

53215303 is a deficient number, since it is larger than the sum of its proper divisors (1).

53215303 is an equidigital number, since it uses as much as digits as its factorization.

53215303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 53215303 is about 7294.8819730000. The cubic root of 53215303 is about 376.1365294704.

Adding to 53215303 its reverse (30351235), we get a palindrome (83566538).

The spelling of 53215303 in words is "fifty-three million, two hundred fifteen thousand, three hundred three".