53331517 has 2 divisors, whose sum is σ = 53331518. Its totient is φ = 53331516.

The previous prime is 53331451. The next prime is 53331521. The reversal of 53331517 is 71513335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30349081 + 22982436 = 5509^2 + 4794^2 .

It is a cyclic number.

It is not a de Polignac number, because 53331517 - 2⁷ = 53331389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53331527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26665758 + 26665759.

It is an arithmetic number, because the mean of its divisors is an integer number (26665759).

Almost surely, 2^53331517 is an apocalyptic number.

It is an amenable number.

53331517 is a deficient number, since it is larger than the sum of its proper divisors (1).

53331517 is an equidigital number, since it uses as much as digits as its factorization.

53331517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 28.

The square root of 53331517 is about 7302.8430765011. The cubic root of 53331517 is about 376.4101384161.

The spelling of 53331517 in words is "fifty-three million, three hundred thirty-one thousand, five hundred seventeen".