53224517 has 2 divisors, whose sum is σ = 53224518. Its totient is φ = 53224516.

The previous prime is 53224487. The next prime is 53224543. The reversal of 53224517 is 71542235.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40271716 + 12952801 = 6346^2 + 3599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53224517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53224517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53224597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26612258 + 26612259.

It is an arithmetic number, because the mean of its divisors is an integer number (26612259).

Almost surely, 2^53224517 is an apocalyptic number.

It is an amenable number.

53224517 is a deficient number, since it is larger than the sum of its proper divisors (1).

53224517 is an equidigital number, since it uses as much as digits as its factorization.

53224517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 53224517 is about 7295.5134843272. The cubic root of 53224517 is about 376.1582370230.

The spelling of 53224517 in words is "fifty-three million, two hundred twenty-four thousand, five hundred seventeen".