53616539 has 2 divisors, whose sum is σ = 53616540. Its totient is φ = 53616538.

The previous prime is 53616509. The next prime is 53616583. The reversal of 53616539 is 93561635.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53616539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53616509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26808269 + 26808270.

It is an arithmetic number, because the mean of its divisors is an integer number (26808270).

Almost surely, 2^53616539 is an apocalyptic number.

53616539 is a deficient number, since it is larger than the sum of its proper divisors (1).

53616539 is an equidigital number, since it uses as much as digits as its factorization.

53616539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 38.

The square root of 53616539 is about 7322.3315275942. The cubic root of 53616539 is about 377.0795025431.

The spelling of 53616539 in words is "fifty-three million, six hundred sixteen thousand, five hundred thirty-nine".