52018121 has 8 divisors (see below), whose sum is σ = 52891944. Its totient is φ = 51148800.

The previous prime is 52018073. The next prime is 52018123. The reversal of 52018121 is 12181025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25351225 + 26666896 = 5035^2 + 5164^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52018121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52018093 and 52018102.

It is not an unprimeable number, because it can be changed into a prime (52018123) 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, 28385 + ... + 30161.

It is an arithmetic number, because the mean of its divisors is an integer number (6611493).

Almost surely, 2^52018121 is an apocalyptic number.

It is an amenable number.

52018121 is a deficient number, since it is larger than the sum of its proper divisors (873823).

52018121 is a wasteful number, since it uses less digits than its factorization.

52018121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 52018121 is about 7212.3589067655. The cubic root of 52018121 is about 373.2944675916.

Adding to 52018121 its reverse (12181025), we get a palindrome (64199146).

The spelling of 52018121 in words is "fifty-two million, eighteen thousand, one hundred twenty-one".