53166471 has 4 divisors (see below), whose sum is σ = 70888632. Its totient is φ = 35444312.

The previous prime is 53166439. The next prime is 53166517. The reversal of 53166471 is 17466135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53166471 - 2⁵ = 53166439 is a prime.

It is a super-3 number, since 3×53166471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53166571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8861076 + ... + 8861081.

It is an arithmetic number, because the mean of its divisors is an integer number (17722158).

Almost surely, 2^53166471 is an apocalyptic number.

53166471 is a deficient number, since it is larger than the sum of its proper divisors (17722161).

53166471 is a wasteful number, since it uses less digits than its factorization.

53166471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17722160.

The product of its digits is 15120, while the sum is 33.

The square root of 53166471 is about 7291.5342007015. The cubic root of 53166471 is about 376.0214427752.

The spelling of 53166471 in words is "fifty-three million, one hundred sixty-six thousand, four hundred seventy-one".