53857438 has 8 divisors (see below), whose sum is σ = 85038120. Its totient is φ = 25511400.

The previous prime is 53857373. The next prime is 53857451. The reversal of 53857438 is 83475835.

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

It is a junction number, because it is equal to n+sod(n) for n = 53857394 and 53857403.

It is a congruent number.

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, 708613 + ... + 708688.

It is an arithmetic number, because the mean of its divisors is an integer number (10629765).

Almost surely, 2^53857438 is an apocalyptic number.

53857438 is a deficient number, since it is larger than the sum of its proper divisors (31180682).

53857438 is a wasteful number, since it uses less digits than its factorization.

53857438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417322.

The product of its digits is 403200, while the sum is 43.

The square root of 53857438 is about 7338.7627022544. The cubic root of 53857438 is about 377.6433980018.

The spelling of 53857438 in words is "fifty-three million, eight hundred fifty-seven thousand, four hundred thirty-eight".