42500219 has 2 divisors, whose sum is σ = 42500220. Its totient is φ = 42500218.

The previous prime is 42500203. The next prime is 42500239. The reversal of 42500219 is 91200524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42500219 - 2⁴ = 42500203 is a prime.

It is a super-2 number, since 2×42500219² = 3612537230095922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42500194 and 42500203.

It is not a weakly prime, because it can be changed into another prime (42500239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21250109 + 21250110.

It is an arithmetic number, because the mean of its divisors is an integer number (21250110).

Almost surely, 2^42500219 is an apocalyptic number.

42500219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42500219 is an equidigital number, since it uses as much as digits as its factorization.

42500219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 42500219 is about 6519.2192017143. The cubic root of 42500219 is about 348.9772017630.

The spelling of 42500219 in words is "forty-two million, five hundred thousand, two hundred nineteen".