61055219 has 2 divisors, whose sum is σ = 61055220. Its totient is φ = 61055218.

The previous prime is 61055201. The next prime is 61055249. The reversal of 61055219 is 91255016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61055219 - 2⁸ = 61054963 is a prime.

It is a super-2 number, since 2×61055219² = 7455479534275922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61055191 and 61055200.

It is not a weakly prime, because it can be changed into another prime (61055249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30527609 + 30527610.

It is an arithmetic number, because the mean of its divisors is an integer number (30527610).

Almost surely, 2^61055219 is an apocalyptic number.

61055219 is a deficient number, since it is larger than the sum of its proper divisors (1).

61055219 is an equidigital number, since it uses as much as digits as its factorization.

61055219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 61055219 is about 7813.7839105007. The cubic root of 61055219 is about 393.7684636005.

The spelling of 61055219 in words is "sixty-one million, fifty-five thousand, two hundred nineteen".