25219 has 2 divisors, whose sum is σ = 25220. Its totient is φ = 25218.

The previous prime is 25189. The next prime is 25229. The reversal of 25219 is 91252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25219 - 2¹³ = 17027 is a prime.

It is a super-2 number, since 2×25219² = 1271995922, which contains 22 as substring.

It is equal to p₂₇₈₂ and since 25219 and 2782 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 25196 and 25205.

It is not a weakly prime, because it can be changed into another prime (25229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12609 + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (12610).

2²⁵²¹⁹ is an apocalyptic number.

25219 is a deficient number, since it is larger than the sum of its proper divisors (1).

25219 is an equidigital number, since it uses as much as digits as its factorization.

25219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 19.

The square root of 25219 is about 158.8049117628. The cubic root of 25219 is about 29.3253105929.

Subtracting from 25219 its sum of digits (19), we obtain a triangular number (25200 = T₂₂₄).

The spelling of 25219 in words is "twenty-five thousand, two hundred nineteen".