52003121 has 2 divisors, whose sum is σ = 52003122. Its totient is φ = 52003120.

The previous prime is 52003117. The next prime is 52003139. The reversal of 52003121 is 12130025.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42393121 + 9610000 = 6511^2 + 3100^2 .

It is a cyclic number.

It is not a de Polignac number, because 52003121 - 2² = 52003117 is a prime.

It is equal to p_3114023 and since 52003121 and 3114023 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 52003096 and 52003105.

It is not a weakly prime, because it can be changed into another prime (52003181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26001560 + 26001561.

It is an arithmetic number, because the mean of its divisors is an integer number (26001561).

Almost surely, 2^52003121 is an apocalyptic number.

It is an amenable number.

52003121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52003121 is an equidigital number, since it uses as much as digits as its factorization.

52003121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 52003121 is about 7211.3189500951. The cubic root of 52003121 is about 373.2585829473.

Adding to 52003121 its reverse (12130025), we get a palindrome (64133146).

The spelling of 52003121 in words is "fifty-two million, three thousand, one hundred twenty-one".