53639747 has 8 divisors (see below), whose sum is σ = 61751136. Its totient is φ = 45640512.

The previous prime is 53639741. The next prime is 53639753. The reversal of 53639747 is 74793635.

53639747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53639741) and next prime (53639753).

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

It is a cyclic number.

It is not a de Polignac number, because 53639747 - 2¹⁴ = 53623363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53639698 and 53639707.

It is not an unprimeable number, because it can be changed into a prime (53639741) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 27008 + ... + 28925.

It is an arithmetic number, because the mean of its divisors is an integer number (7718892).

Almost surely, 2^53639747 is an apocalyptic number.

53639747 is a deficient number, since it is larger than the sum of its proper divisors (8111389).

53639747 is a wasteful number, since it uses less digits than its factorization.

53639747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56077.

The product of its digits is 476280, while the sum is 44.

The square root of 53639747 is about 7323.9160972802. The cubic root of 53639747 is about 377.1339011727.

The spelling of 53639747 in words is "fifty-three million, six hundred thirty-nine thousand, seven hundred forty-seven".