53999171 has 2 divisors, whose sum is σ = 53999172. Its totient is φ = 53999170.

The previous prime is 53999161. The next prime is 53999203. The reversal of 53999171 is 17199935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53999171 - 2¹⁴ = 53982787 is a prime.

It is not a weakly prime, because it can be changed into another prime (53999111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26999585 + 26999586.

It is an arithmetic number, because the mean of its divisors is an integer number (26999586).

Almost surely, 2^53999171 is an apocalyptic number.

53999171 is a deficient number, since it is larger than the sum of its proper divisors (1).

53999171 is an equidigital number, since it uses as much as digits as its factorization.

53999171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76545, while the sum is 44.

The square root of 53999171 is about 7348.4128218276. The cubic root of 53999171 is about 377.9743807464.

The spelling of 53999171 in words is "fifty-three million, nine hundred ninety-nine thousand, one hundred seventy-one".