53550517 has 2 divisors, whose sum is σ = 53550518. Its totient is φ = 53550516.

The previous prime is 53550481. The next prime is 53550529. The reversal of 53550517 is 71505535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34939921 + 18610596 = 5911^2 + 4314^2 .

It is a cyclic number.

It is not a de Polignac number, because 53550517 - 2⁷ = 53550389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53550577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26775258 + 26775259.

It is an arithmetic number, because the mean of its divisors is an integer number (26775259).

Almost surely, 2^53550517 is an apocalyptic number.

It is an amenable number.

53550517 is a deficient number, since it is larger than the sum of its proper divisors (1).

53550517 is an equidigital number, since it uses as much as digits as its factorization.

53550517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 53550517 is about 7317.8218753943. The cubic root of 53550517 is about 376.9246637007.

The spelling of 53550517 in words is "fifty-three million, five hundred fifty thousand, five hundred seventeen".