52611409 has 2 divisors, whose sum is σ = 52611410. Its totient is φ = 52611408.

The previous prime is 52611397. The next prime is 52611431. The reversal of 52611409 is 90411625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34574400 + 18037009 = 5880^2 + 4247^2 .

It is a cyclic number.

It is not a de Polignac number, because 52611409 - 2¹³ = 52603217 is a prime.

It is not a weakly prime, because it can be changed into another prime (52611439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26305704 + 26305705.

It is an arithmetic number, because the mean of its divisors is an integer number (26305705).

Almost surely, 2^52611409 is an apocalyptic number.

It is an amenable number.

52611409 is a deficient number, since it is larger than the sum of its proper divisors (1).

52611409 is an equidigital number, since it uses as much as digits as its factorization.

52611409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 52611409 is about 7253.3722502020. The cubic root of 52611409 is about 374.7082981893.

It can be divided in two parts, 5261 and 1409, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 52611409 in words is "fifty-two million, six hundred eleven thousand, four hundred nine".