52021371 has 8 divisors (see below), whose sum is σ = 71236624. Its totient is φ = 33743520.

The previous prime is 52021369. The next prime is 52021381. The reversal of 52021371 is 17312025.

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

It is not a de Polignac number, because 52021371 - 2¹ = 52021369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52021381) 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, 234220 + ... + 234441.

It is an arithmetic number, because the mean of its divisors is an integer number (8904578).

Almost surely, 2^52021371 is an apocalyptic number.

52021371 is a deficient number, since it is larger than the sum of its proper divisors (19215253).

52021371 is a wasteful number, since it uses less digits than its factorization.

52021371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468701.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 52021371 is about 7212.5842109469. The cubic root of 52021371 is about 373.3022416886.

Adding to 52021371 its reverse (17312025), we get a palindrome (69333396).

The spelling of 52021371 in words is "fifty-two million, twenty-one thousand, three hundred seventy-one".