53118247 has 32 divisors (see below), whose sum is σ = 69995520. Its totient is φ = 39156480.

The previous prime is 53118239. The next prime is 53118253. The reversal of 53118247 is 74281135.

It is a cyclic number.

It is not a de Polignac number, because 53118247 - 2³ = 53118239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53118647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85504 + ... + 86122.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 2^53118247 is an apocalyptic number.

53118247 is a deficient number, since it is larger than the sum of its proper divisors (16877273).

53118247 is a wasteful number, since it uses less digits than its factorization.

53118247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its digits is 6720, while the sum is 31.

The square root of 53118247 is about 7288.2266018559. The cubic root of 53118247 is about 375.9077198279.

The spelling of 53118247 in words is "fifty-three million, one hundred eighteen thousand, two hundred forty-seven".