52871997 has 8 divisors (see below), whose sum is σ = 70591680. Its totient is φ = 35200160.

The previous prime is 52871981. The next prime is 52872007. The reversal of 52871997 is 79917825.

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 52871997 - 2⁴ = 52871981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52871947) 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, 9297 + ... + 13862.

It is an arithmetic number, because the mean of its divisors is an integer number (8823960).

Almost surely, 2^52871997 is an apocalyptic number.

It is an amenable number.

52871997 is a deficient number, since it is larger than the sum of its proper divisors (17719683).

52871997 is a wasteful number, since it uses less digits than its factorization.

52871997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23923.

The product of its digits is 317520, while the sum is 48.

The square root of 52871997 is about 7271.3132926590. The cubic root of 52871997 is about 375.3259317450.

The spelling of 52871997 in words is "fifty-two million, eight hundred seventy-one thousand, nine hundred ninety-seven".