53115577 has 2 divisors, whose sum is σ = 53115578. Its totient is φ = 53115576.

The previous prime is 53115563. The next prime is 53115607. The reversal of 53115577 is 77551135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51538041 + 1577536 = 7179^2 + 1256^2 .

It is a cyclic number.

It is not a de Polignac number, because 53115577 - 2¹⁹ = 52591289 is a prime.

It is not a weakly prime, because it can be changed into another prime (53115527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26557788 + 26557789.

It is an arithmetic number, because the mean of its divisors is an integer number (26557789).

Almost surely, 2^53115577 is an apocalyptic number.

It is an amenable number.

53115577 is a deficient number, since it is larger than the sum of its proper divisors (1).

53115577 is an equidigital number, since it uses as much as digits as its factorization.

53115577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18375, while the sum is 34.

The square root of 53115577 is about 7288.0434274228. The cubic root of 53115577 is about 375.9014213618.

The spelling of 53115577 in words is "fifty-three million, one hundred fifteen thousand, five hundred seventy-seven".