52605247 has 2 divisors, whose sum is σ = 52605248. Its totient is φ = 52605246.

The previous prime is 52605221. The next prime is 52605257. The reversal of 52605247 is 74250625.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52605247 is a prime.

It is a zygodrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52605257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26302623 + 26302624.

It is an arithmetic number, because the mean of its divisors is an integer number (26302624).

Almost surely, 2^52605247 is an apocalyptic number.

52605247 is a deficient number, since it is larger than the sum of its proper divisors (1).

52605247 is an equidigital number, since it uses as much as digits as its factorization.

52605247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 52605247 is about 7252.9474698222. The cubic root of 52605247 is about 374.6936686459.

The spelling of 52605247 in words is "fifty-two million, six hundred five thousand, two hundred forty-seven".