53507909 has 8 divisors (see below), whose sum is σ = 65856000. Its totient is φ = 42335856.

The previous prime is 53507903. The next prime is 53507917. The reversal of 53507909 is 90970535.

53507909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53507909 - 2⁴ = 53507893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53507903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293909 + ... + 294090.

It is an arithmetic number, because the mean of its divisors is an integer number (8232000).

Almost surely, 2^53507909 is an apocalyptic number.

It is an amenable number.

53507909 is a deficient number, since it is larger than the sum of its proper divisors (12348091).

53507909 is a wasteful number, since it uses less digits than its factorization.

53507909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588019.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 53507909 is about 7314.9100472938. The cubic root of 53507909 is about 376.8246692264.

The spelling of 53507909 in words is "fifty-three million, five hundred seven thousand, nine hundred nine".