25142219 has 4 divisors (see below), whose sum is σ = 25517544. Its totient is φ = 24766896.

The previous prime is 25142213. The next prime is 25142239. The reversal of 25142219 is 91224152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25142219 is a prime.

It is a super-2 number, since 2×25142219² = 1264262352487922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25142213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187562 + ... + 187695.

It is an arithmetic number, because the mean of its divisors is an integer number (6379386).

Almost surely, 2^25142219 is an apocalyptic number.

25142219 is a deficient number, since it is larger than the sum of its proper divisors (375325).

25142219 is an equidigital number, since it uses as much as digits as its factorization.

25142219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375324.

The product of its digits is 1440, while the sum is 26.

The square root of 25142219 is about 5014.2017310834. The cubic root of 25142219 is about 292.9551935584.

The spelling of 25142219 in words is "twenty-five million, one hundred forty-two thousand, two hundred nineteen".