53906385 has 16 divisors (see below), whose sum is σ = 92885184. Its totient is φ = 26538432.

The previous prime is 53906357. The next prime is 53906423. The reversal of 53906385 is 58360935.

It is not a de Polignac number, because 53906385 - 2¹⁰ = 53905361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138027 + ... + 138416.

It is an arithmetic number, because the mean of its divisors is an integer number (5805324).

Almost surely, 2^53906385 is an apocalyptic number.

It is an amenable number.

53906385 is a deficient number, since it is larger than the sum of its proper divisors (38978799).

53906385 is a wasteful number, since it uses less digits than its factorization.

53906385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276464.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 53906385 is about 7342.0967713590. The cubic root of 53906385 is about 377.7577673144.

The spelling of 53906385 in words is "fifty-three million, nine hundred six thousand, three hundred eighty-five".