52215049 has 2 divisors, whose sum is σ = 52215050. Its totient is φ = 52215048.

The previous prime is 52215019. The next prime is 52215071. The reversal of 52215049 is 94051225.

52215049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50310649 + 1904400 = 7093^2 + 1380^2 .

It is a cyclic number.

It is not a de Polignac number, because 52215049 - 2⁹ = 52214537 is a prime.

It is a super-2 number, since 2×52215049² = 5452822684144802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52215019) 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 as a sum of consecutive naturals, namely, 26107524 + 26107525.

It is an arithmetic number, because the mean of its divisors is an integer number (26107525).

Almost surely, 2^52215049 is an apocalyptic number.

It is an amenable number.

52215049 is a deficient number, since it is larger than the sum of its proper divisors (1).

52215049 is an equidigital number, since it uses as much as digits as its factorization.

52215049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 52215049 is about 7225.9981317462. The cubic root of 52215049 is about 373.7649418530.

The spelling of 52215049 in words is "fifty-two million, two hundred fifteen thousand, forty-nine".