53187613 has 2 divisors, whose sum is σ = 53187614. Its totient is φ = 53187612.

The previous prime is 53187583. The next prime is 53187643. The reversal of 53187613 is 31678135.

53187613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (53187583) and next prime (53187643).

It can be written as a sum of positive squares in only one way, i.e., 41641209 + 11546404 = 6453^2 + 3398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53187613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53187643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26593806 + 26593807.

It is an arithmetic number, because the mean of its divisors is an integer number (26593807).

Almost surely, 2^53187613 is an apocalyptic number.

It is an amenable number.

53187613 is a deficient number, since it is larger than the sum of its proper divisors (1).

53187613 is an equidigital number, since it uses as much as digits as its factorization.

53187613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 53187613 is about 7292.9838200835. The cubic root of 53187613 is about 376.0712786439.

The spelling of 53187613 in words is "fifty-three million, one hundred eighty-seven thousand, six hundred thirteen".