53247638 has 8 divisors (see below), whose sum is σ = 84569832. Its totient is φ = 25057696.

The previous prime is 53247637. The next prime is 53247673. The reversal of 53247638 is 83674235.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53247637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783020 + ... + 783087.

It is an arithmetic number, because the mean of its divisors is an integer number (10571229).

Almost surely, 2^53247638 is an apocalyptic number.

53247638 is a deficient number, since it is larger than the sum of its proper divisors (31322194).

53247638 is a wasteful number, since it uses less digits than its factorization.

53247638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566126.

The product of its digits is 120960, while the sum is 38.

The square root of 53247638 is about 7297.0979162952. The cubic root of 53247638 is about 376.2126974862.

The spelling of 53247638 in words is "fifty-three million, two hundred forty-seven thousand, six hundred thirty-eight".