52215503 has 2 divisors, whose sum is σ = 52215504. Its totient is φ = 52215502.

The previous prime is 52215491. The next prime is 52215511. The reversal of 52215503 is 30551225.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52215503 - 2¹⁸ = 51953359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52218503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26107751 + 26107752.

It is an arithmetic number, because the mean of its divisors is an integer number (26107752).

Almost surely, 2^52215503 is an apocalyptic number.

52215503 is a deficient number, since it is larger than the sum of its proper divisors (1).

52215503 is an equidigital number, since it uses as much as digits as its factorization.

52215503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 52215503 is about 7226.0295460232. The cubic root of 52215503 is about 373.7660251217.

Adding to 52215503 its reverse (30551225), we get a palindrome (82766728).

The spelling of 52215503 in words is "fifty-two million, two hundred fifteen thousand, five hundred three".