53870385 has 8 divisors (see below), whose sum is σ = 86192640. Its totient is φ = 28730864.

The previous prime is 53870329. The next prime is 53870389. The reversal of 53870385 is 58307835.

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 53870385 - 2⁶ = 53870321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53870389) 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 7 ways as a sum of consecutive naturals, for example, 1795665 + ... + 1795694.

It is an arithmetic number, because the mean of its divisors is an integer number (10774080).

Almost surely, 2^53870385 is an apocalyptic number.

It is an amenable number.

53870385 is a deficient number, since it is larger than the sum of its proper divisors (32322255).

53870385 is a wasteful number, since it uses less digits than its factorization.

53870385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591367.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 53870385 is about 7339.6447461713. The cubic root of 53870385 is about 377.6736566347.

The spelling of 53870385 in words is "fifty-three million, eight hundred seventy thousand, three hundred eighty-five".