52497509 has 2 divisors, whose sum is σ = 52497510. Its totient is φ = 52497508.

The previous prime is 52497499. The next prime is 52497527. The reversal of 52497509 is 90579425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50452609 + 2044900 = 7103^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 52497509 - 2⁸ = 52497253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52497559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26248754 + 26248755.

It is an arithmetic number, because the mean of its divisors is an integer number (26248755).

Almost surely, 2^52497509 is an apocalyptic number.

It is an amenable number.

52497509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52497509 is an equidigital number, since it uses as much as digits as its factorization.

52497509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 52497509 is about 7245.5164757248. The cubic root of 52497509 is about 374.4376971145.

The spelling of 52497509 in words is "fifty-two million, four hundred ninety-seven thousand, five hundred nine".