53065513 has 2 divisors, whose sum is σ = 53065514. Its totient is φ = 53065512.

The previous prime is 53065489. The next prime is 53065559. The reversal of 53065513 is 31556035.

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., 36808489 + 16257024 = 6067^2 + 4032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53065513 is a prime.

It is equal to p_3173725 and since 53065513 and 3173725 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53065213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26532756 + 26532757.

It is an arithmetic number, because the mean of its divisors is an integer number (26532757).

Almost surely, 2^53065513 is an apocalyptic number.

It is an amenable number.

53065513 is a deficient number, since it is larger than the sum of its proper divisors (1).

53065513 is an equidigital number, since it uses as much as digits as its factorization.

53065513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 53065513 is about 7284.6079510156. The cubic root of 53065513 is about 375.7832824807.

The spelling of 53065513 in words is "fifty-three million, sixty-five thousand, five hundred thirteen".