53857138 has 8 divisors (see below), whose sum is σ = 80823132. Its totient is φ = 26916096.

The previous prime is 53857127. The next prime is 53857151. The reversal of 53857138 is 83175835.

It can be written as a sum of positive squares in 2 ways, for example, as 45603009 + 8254129 = 6753^2 + 2873^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 53857138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706 + ... + 10402.

Almost surely, 2^53857138 is an apocalyptic number.

53857138 is a deficient number, since it is larger than the sum of its proper divisors (26965994).

53857138 is a wasteful number, since it uses less digits than its factorization.

53857138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476.

The product of its digits is 100800, while the sum is 40.

The square root of 53857138 is about 7338.7422628132. The cubic root of 53857138 is about 377.6426968097.

The spelling of 53857138 in words is "fifty-three million, eight hundred fifty-seven thousand, one hundred thirty-eight".