53118207 has 16 divisors (see below), whose sum is σ = 79420000. Its totient is φ = 35085312.

The previous prime is 53118187. The next prime is 53118209. The reversal of 53118207 is 70281135.

It is not a de Polignac number, because 53118207 - 2¹² = 53114111 is a prime.

It is a super-4 number, since 4×53118207⁴ (a number of 32 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53118209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6082 + ... + 11967.

It is an arithmetic number, because the mean of its divisors is an integer number (4963750).

Almost surely, 2^53118207 is an apocalyptic number.

53118207 is a deficient number, since it is larger than the sum of its proper divisors (26301793).

53118207 is a wasteful number, since it uses less digits than its factorization.

53118207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18167 (or 18161 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 53118207 is about 7288.2238577036. The cubic root of 53118207 is about 375.9076254704.

The spelling of 53118207 in words is "fifty-three million, one hundred eighteen thousand, two hundred seven".