52400219 has 2 divisors, whose sum is σ = 52400220. Its totient is φ = 52400218.

The previous prime is 52400213. The next prime is 52400267. The reversal of 52400219 is 91200425.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52400219 is a prime.

It is a super-2 number, since 2×52400219² = 5491565902495922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_3136334 and since 52400219 and 3136334 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 52400194 and 52400203.

It is not a weakly prime, because it can be changed into another prime (52400213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26200109 + 26200110.

It is an arithmetic number, because the mean of its divisors is an integer number (26200110).

Almost surely, 2^52400219 is an apocalyptic number.

52400219 is a deficient number, since it is larger than the sum of its proper divisors (1).

52400219 is an equidigital number, since it uses as much as digits as its factorization.

52400219 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 52400219 is about 7238.7995551749. The cubic root of 52400219 is about 374.2062475896.

The spelling of 52400219 in words is "fifty-two million, four hundred thousand, two hundred nineteen".