53517223 has 2 divisors, whose sum is σ = 53517224. Its totient is φ = 53517222.

The previous prime is 53517199. The next prime is 53517239. The reversal of 53517223 is 32271535.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53517223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53517191 and 53517200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53517263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26758611 + 26758612.

It is an arithmetic number, because the mean of its divisors is an integer number (26758612).

Almost surely, 2^53517223 is an apocalyptic number.

53517223 is a deficient number, since it is larger than the sum of its proper divisors (1).

53517223 is an equidigital number, since it uses as much as digits as its factorization.

53517223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 28.

The square root of 53517223 is about 7315.5466644674. The cubic root of 53517223 is about 376.8465322956.

Adding to 53517223 its reverse (32271535), we get a palindrome (85788758).

The spelling of 53517223 in words is "fifty-three million, five hundred seventeen thousand, two hundred twenty-three".