52505249 has 2 divisors, whose sum is σ = 52505250. Its totient is φ = 52505248.

The previous prime is 52505209. The next prime is 52505261. The reversal of 52505249 is 94250525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36385024 + 16120225 = 6032^2 + 4015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52505249 is a prime.

It is a super-3 number, since 3×52505249³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (52505209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26252624 + 26252625.

It is an arithmetic number, because the mean of its divisors is an integer number (26252625).

Almost surely, 2^52505249 is an apocalyptic number.

It is an amenable number.

52505249 is a deficient number, since it is larger than the sum of its proper divisors (1).

52505249 is an equidigital number, since it uses as much as digits as its factorization.

52505249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 52505249 is about 7246.0505794536. The cubic root of 52505249 is about 374.4560980216.

The spelling of 52505249 in words is "fifty-two million, five hundred five thousand, two hundred forty-nine".