52134021 has 12 divisors (see below), whose sum is σ = 75392460. Its totient is φ = 34715520.

The previous prime is 52134011. The next prime is 52134041. The reversal of 52134021 is 12043125.

It can be written as a sum of positive squares in 2 ways, for example, as 20930625 + 31203396 = 4575^2 + 5586^2 .

It is not a de Polignac number, because 52134021 - 2⁵ = 52133989 is a prime.

It is a super-2 number, since 2×52134021² = 5435912291256882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52133985 and 52134003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52134011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6211 + ... + 11951.

It is an arithmetic number, because the mean of its divisors is an integer number (6282705).

Almost surely, 2^52134021 is an apocalyptic number.

It is an amenable number.

52134021 is a deficient number, since it is larger than the sum of its proper divisors (23258439).

52134021 is a wasteful number, since it uses less digits than its factorization.

52134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756 (or 6753 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52134021 is about 7220.3892554349. The cubic root of 52134021 is about 373.5715039739.

Adding to 52134021 its reverse (12043125), we get a palindrome (64177146).

The spelling of 52134021 in words is "fifty-two million, one hundred thirty-four thousand, twenty-one".