53120187 has 12 divisors (see below), whose sum is σ = 76793184. Its totient is φ = 35383920.

The previous prime is 53120173. The next prime is 53120191. The reversal of 53120187 is 78102135.

It is not a de Polignac number, because 53120187 - 2⁸ = 53119931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53120187.

It is not an unprimeable number, because it can be changed into a prime (53120117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17137 + ... + 19997.

It is an arithmetic number, because the mean of its divisors is an integer number (6399432).

Almost surely, 2^53120187 is an apocalyptic number.

53120187 is a deficient number, since it is larger than the sum of its proper divisors (23672997).

53120187 is a wasteful number, since it uses less digits than its factorization.

53120187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930 (or 4927 counting only the distinct ones).

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

The square root of 53120187 is about 7288.3596920020. The cubic root of 53120187 is about 375.9122961090.

The spelling of 53120187 in words is "fifty-three million, one hundred twenty thousand, one hundred eighty-seven".