52195609 has 2 divisors, whose sum is σ = 52195610. Its totient is φ = 52195608.

The previous prime is 52195607. The next prime is 52195643. The reversal of 52195609 is 90659125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27594009 + 24601600 = 5253^2 + 4960^2 .

It is a cyclic number.

It is not a de Polignac number, because 52195609 - 2¹ = 52195607 is a prime.

Together with 52195607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52195601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26097804 + 26097805.

It is an arithmetic number, because the mean of its divisors is an integer number (26097805).

Almost surely, 2^52195609 is an apocalyptic number.

It is an amenable number.

52195609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52195609 is an equidigital number, since it uses as much as digits as its factorization.

52195609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 52195609 is about 7224.6528636330. The cubic root of 52195609 is about 373.7185510613.

The spelling of 52195609 in words is "fifty-two million, one hundred ninety-five thousand, six hundred nine".