53147938 has 4 divisors (see below), whose sum is σ = 79721910. Its totient is φ = 26573968.

The previous prime is 53147909. The next prime is 53147953. The reversal of 53147938 is 83974135.

53147938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50936769 + 2211169 = 7137^2 + 1487^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53147938.

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 as a sum of consecutive naturals, namely, 13286983 + ... + 13286986.

Almost surely, 2^53147938 is an apocalyptic number.

53147938 is a deficient number, since it is larger than the sum of its proper divisors (26573972).

53147938 is a wasteful number, since it uses less digits than its factorization.

53147938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26573971.

The product of its digits is 90720, while the sum is 40.

The square root of 53147938 is about 7290.2632325589. The cubic root of 53147938 is about 375.9777459667.

The spelling of 53147938 in words is "fifty-three million, one hundred forty-seven thousand, nine hundred thirty-eight".