53758509 has 16 divisors (see below), whose sum is σ = 82268160. Its totient is φ = 30587760.

The previous prime is 53758487. The next prime is 53758559. The reversal of 53758509 is 90585735.

It is not a de Polignac number, because 53758509 - 2⁵ = 53758477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53758559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337 + ... + 10374.

It is an arithmetic number, because the mean of its divisors is an integer number (5141760).

Almost surely, 2^53758509 is an apocalyptic number.

It is an amenable number.

53758509 is a deficient number, since it is larger than the sum of its proper divisors (28509651).

53758509 is a wasteful number, since it uses less digits than its factorization.

53758509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10960.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 53758509 is about 7332.0194353261. The cubic root of 53758509 is about 377.4120292652.

The spelling of 53758509 in words is "fifty-three million, seven hundred fifty-eight thousand, five hundred nine".