25235215 has 8 divisors (see below), whose sum is σ = 30734640. Its totient is φ = 19886592.

The previous prime is 25235183. The next prime is 25235219. The reversal of 25235215 is 51253252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25235215 - 2⁵ = 25235183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25235215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25235219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37330 + ... + 37999.

It is an arithmetic number, because the mean of its divisors is an integer number (3841830).

Almost surely, 2^25235215 is an apocalyptic number.

25235215 is a deficient number, since it is larger than the sum of its proper divisors (5499425).

25235215 is an equidigital number, since it uses as much as digits as its factorization.

25235215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75401.

The product of its digits is 3000, while the sum is 25.

The square root of 25235215 is about 5023.4664326539. The cubic root of 25235215 is about 293.3159432126.

Adding to 25235215 its reverse (51253252), we get a palindrome (76488467).

The spelling of 25235215 in words is "twenty-five million, two hundred thirty-five thousand, two hundred fifteen".