52290013 has 2 divisors, whose sum is σ = 52290014. Its totient is φ = 52290012.

The previous prime is 52290001. The next prime is 52290019. The reversal of 52290013 is 31009225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47032164 + 5257849 = 6858^2 + 2293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52290013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52290019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26145006 + 26145007.

It is an arithmetic number, because the mean of its divisors is an integer number (26145007).

Almost surely, 2^52290013 is an apocalyptic number.

It is an amenable number.

52290013 is a deficient number, since it is larger than the sum of its proper divisors (1).

52290013 is an equidigital number, since it uses as much as digits as its factorization.

52290013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 52290013 is about 7231.1833748011. The cubic root of 52290013 is about 373.9437250301.

Adding to 52290013 its reverse (31009225), we get a palindrome (83299238).

The spelling of 52290013 in words is "fifty-two million, two hundred ninety thousand, thirteen".