52071971 has 8 divisors (see below), whose sum is σ = 61430784. Its totient is φ = 43193160.

The previous prime is 52071967. The next prime is 52072001. The reversal of 52071971 is 17917025.

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 52071971 - 2² = 52071967 is a prime.

It is a super-2 number, since 2×52071971² = 5422980327649682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52071941) 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, 119765 + ... + 120198.

It is an arithmetic number, because the mean of its divisors is an integer number (7678848).

Almost surely, 2^52071971 is an apocalyptic number.

52071971 is a deficient number, since it is larger than the sum of its proper divisors (9358813).

52071971 is a wasteful number, since it uses less digits than its factorization.

52071971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240001.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 52071971 is about 7216.0911163870. The cubic root of 52071971 is about 373.4232366570.

Adding to 52071971 its reverse (17917025), we get a palindrome (69988996).

The spelling of 52071971 in words is "fifty-two million, seventy-one thousand, nine hundred seventy-one".