53065971 has 18 divisors (see below), whose sum is σ = 89166012. Its totient is φ = 30323160.

The previous prime is 53065951. The next prime is 53065973. The reversal of 53065971 is 17956035.

It is a happy number.

53065971 is a `hidden beast` number, since 530 + 6 + 59 + 71 = 666.

It is not a de Polignac number, because 53065971 - 2⁵ = 53065939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53065973) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59725 + ... + 60606.

Almost surely, 2^53065971 is an apocalyptic number.

53065971 is a deficient number, since it is larger than the sum of its proper divisors (36100041).

53065971 is a wasteful number, since it uses less digits than its factorization.

53065971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120351 (or 120341 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 53065971 is about 7284.6393870939. The cubic root of 53065971 is about 375.7843635862.

The spelling of 53065971 in words is "fifty-three million, sixty-five thousand, nine hundred seventy-one".