53658719 has 2 divisors, whose sum is σ = 53658720. Its totient is φ = 53658718.

The previous prime is 53658713. The next prime is 53658721. The reversal of 53658719 is 91785635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53658719 - 2²⁰ = 52610143 is a prime.

It is a super-2 number, since 2×53658719² = 5758516249441922, which contains 22 as substring.

Together with 53658721, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53658719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53658713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26829359 + 26829360.

It is an arithmetic number, because the mean of its divisors is an integer number (26829360).

Almost surely, 2^53658719 is an apocalyptic number.

53658719 is a deficient number, since it is larger than the sum of its proper divisors (1).

53658719 is an equidigital number, since it uses as much as digits as its factorization.

53658719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 53658719 is about 7325.2111914948. The cubic root of 53658719 is about 377.1783591314.

The spelling of 53658719 in words is "fifty-three million, six hundred fifty-eight thousand, seven hundred nineteen".