53155138 has 8 divisors (see below), whose sum is σ = 81587088. Its totient is φ = 25959444.

The previous prime is 53155133. The next prime is 53155153. The reversal of 53155138 is 83155135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53155133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308956 + ... + 309127.

It is an arithmetic number, because the mean of its divisors is an integer number (10198386).

Almost surely, 2^53155138 is an apocalyptic number.

53155138 is a deficient number, since it is larger than the sum of its proper divisors (28431950).

53155138 is a wasteful number, since it uses less digits than its factorization.

53155138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618128.

The product of its digits is 9000, while the sum is 31.

The square root of 53155138 is about 7290.7570251655. The cubic root of 53155138 is about 375.9947232170.

The spelling of 53155138 in words is "fifty-three million, one hundred fifty-five thousand, one hundred thirty-eight".