53656507 has 2 divisors, whose sum is σ = 53656508. Its totient is φ = 53656506.

The previous prime is 53656487. The next prime is 53656523. The reversal of 53656507 is 70565635.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53656507 is a prime.

It is not a weakly prime, because it can be changed into another prime (53656597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26828253 + 26828254.

It is an arithmetic number, because the mean of its divisors is an integer number (26828254).

Almost surely, 2^53656507 is an apocalyptic number.

53656507 is a deficient number, since it is larger than the sum of its proper divisors (1).

53656507 is an equidigital number, since it uses as much as digits as its factorization.

53656507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 53656507 is about 7325.0602045307. The cubic root of 53656507 is about 377.1731761900.

The spelling of 53656507 in words is "fifty-three million, six hundred fifty-six thousand, five hundred seven".