52425409 has 2 divisors, whose sum is σ = 52425410. Its totient is φ = 52425408.

The previous prime is 52425407. The next prime is 52425419. The reversal of 52425409 is 90452425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 944784 = 7175^2 + 972^2 .

It is a cyclic number.

It is not a de Polignac number, because 52425409 - 2¹ = 52425407 is a prime.

Together with 52425407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52425407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26212704 + 26212705.

It is an arithmetic number, because the mean of its divisors is an integer number (26212705).

Almost surely, 2^52425409 is an apocalyptic number.

It is an amenable number.

52425409 is a deficient number, since it is larger than the sum of its proper divisors (1).

52425409 is an equidigital number, since it uses as much as digits as its factorization.

52425409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 52425409 is about 7240.5392754960. The cubic root of 52425409 is about 374.2662011895.

The spelling of 52425409 in words is "fifty-two million, four hundred twenty-five thousand, four hundred nine".