53117747 has 8 divisors (see below), whose sum is σ = 53619840. Its totient is φ = 52618240.

The previous prime is 53117693. The next prime is 53117761. The reversal of 53117747 is 74771135.

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 53117747 - 2¹² = 53113651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53117767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82547 + ... + 83187.

It is an arithmetic number, because the mean of its divisors is an integer number (6702480).

Almost surely, 2^53117747 is an apocalyptic number.

53117747 is a deficient number, since it is larger than the sum of its proper divisors (502093).

53117747 is a wasteful number, since it uses less digits than its factorization.

53117747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293.

The product of its digits is 20580, while the sum is 35.

The square root of 53117747 is about 7288.1922998779. The cubic root of 53117747 is about 375.9065403559.

The spelling of 53117747 in words is "fifty-three million, one hundred seventeen thousand, seven hundred forty-seven".