53871471 has 6 divisors (see below), whose sum is σ = 77814360. Its totient is φ = 35914308.

The previous prime is 53871437. The next prime is 53871509. The reversal of 53871471 is 17417835.

It is not a de Polignac number, because 53871471 - 2⁶ = 53871407 is a prime.

It is a super-3 number, since 3×53871471³ (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 (53871401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2992851 + ... + 2992868.

It is an arithmetic number, because the mean of its divisors is an integer number (12969060).

Almost surely, 2^53871471 is an apocalyptic number.

53871471 is a deficient number, since it is larger than the sum of its proper divisors (23942889).

53871471 is a wasteful number, since it uses less digits than its factorization.

53871471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985725 (or 5985722 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 53871471 is about 7339.7187275808. The cubic root of 53871471 is about 377.6761945216.

The spelling of 53871471 in words is "fifty-three million, eight hundred seventy-one thousand, four hundred seventy-one".