52157471 has 8 divisors (see below), whose sum is σ = 53246160. Its totient is φ = 51080128.

The previous prime is 52157467. The next prime is 52157507. The reversal of 52157471 is 17475125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52157471 - 2² = 52157467 is a prime.

It is a super-3 number, since 3×52157471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52157401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6785 + ... + 12261.

It is an arithmetic number, because the mean of its divisors is an integer number (6655770).

Almost surely, 2^52157471 is an apocalyptic number.

52157471 is a deficient number, since it is larger than the sum of its proper divisors (1088689).

52157471 is a wasteful number, since it uses less digits than its factorization.

52157471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its digits is 9800, while the sum is 32.

The square root of 52157471 is about 7222.0129465406. The cubic root of 52157471 is about 373.6275066791.

The spelling of 52157471 in words is "fifty-two million, one hundred fifty-seven thousand, four hundred seventy-one".