52454509 has 2 divisors, whose sum is σ = 52454510. Its totient is φ = 52454508.

The previous prime is 52454483. The next prime is 52454527. The reversal of 52454509 is 90545425.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37785609 + 14668900 = 6147^2 + 3830^2 .

It is a cyclic number.

It is not a de Polignac number, because 52454509 - 2⁵ = 52454477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52454579) 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, 26227254 + 26227255.

It is an arithmetic number, because the mean of its divisors is an integer number (26227255).

Almost surely, 2^52454509 is an apocalyptic number.

It is an amenable number.

52454509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52454509 is an equidigital number, since it uses as much as digits as its factorization.

52454509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 52454509 is about 7242.5485155434. The cubic root of 52454509 is about 374.3354369040.

The spelling of 52454509 in words is "fifty-two million, four hundred fifty-four thousand, five hundred nine".