53935509 has 16 divisors (see below), whose sum is σ = 80153280. Its totient is φ = 32060160.

The previous prime is 53935487. The next prime is 53935517. The reversal of 53935509 is 90553935.

It is not a de Polignac number, because 53935509 - 2⁵ = 53935477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53935549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26862 + ... + 28799.

It is an arithmetic number, because the mean of its divisors is an integer number (5009580).

Almost surely, 2^53935509 is an apocalyptic number.

It is an amenable number.

53935509 is a deficient number, since it is larger than the sum of its proper divisors (26217771).

53935509 is a wasteful number, since it uses less digits than its factorization.

53935509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55700.

The product of its (nonzero) digits is 91125, while the sum is 39.

The square root of 53935509 is about 7344.0798606769. The cubic root of 53935509 is about 377.8257854567.

The spelling of 53935509 in words is "fifty-three million, nine hundred thirty-five thousand, five hundred nine".