53138658 has 8 divisors (see below), whose sum is σ = 106277328. Its totient is φ = 17712884.

The previous prime is 53138629. The next prime is 53138663. The reversal of 53138658 is 85683135.

53138658 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.

53138658 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4428216 + ... + 4428227.

It is an arithmetic number, because the mean of its divisors is an integer number (13284666).

Almost surely, 2^53138658 is an apocalyptic number.

53138658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53138658 is a wasteful number, since it uses less digits than its factorization.

53138658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8856448.

The product of its digits is 86400, while the sum is 39.

The square root of 53138658 is about 7289.6267394154. The cubic root of 53138658 is about 375.9558619156.

It can be divided in two parts, 5313 and 8658, that multiplied together give a palindrome (45999954).

The spelling of 53138658 in words is "fifty-three million, one hundred thirty-eight thousand, six hundred fifty-eight".