53687219 has 2 divisors, whose sum is σ = 53687220. Its totient is φ = 53687218.

The previous prime is 53687213. The next prime is 53687279. The reversal of 53687219 is 91278635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53687219 - 2¹⁶ = 53621683 is a prime.

It is a super-2 number, since 2×53687219² = 5764634967907922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53687213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26843609 + 26843610.

It is an arithmetic number, because the mean of its divisors is an integer number (26843610).

Almost surely, 2^53687219 is an apocalyptic number.

53687219 is a deficient number, since it is larger than the sum of its proper divisors (1).

53687219 is an equidigital number, since it uses as much as digits as its factorization.

53687219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 53687219 is about 7327.1562696588. The cubic root of 53687219 is about 377.2451247993.

The spelling of 53687219 in words is "fifty-three million, six hundred eighty-seven thousand, two hundred nineteen".