25240115 has 8 divisors (see below), whose sum is σ = 30703488. Its totient is φ = 19915200.

The previous prime is 25240109. The next prime is 25240139. The reversal of 25240115 is 51104252.

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

It is not a de Polignac number, because 25240115 - 2⁴ = 25240099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34211 + ... + 34940.

It is an arithmetic number, because the mean of its divisors is an integer number (3837936).

Almost surely, 2^25240115 is an apocalyptic number.

25240115 is a deficient number, since it is larger than the sum of its proper divisors (5463373).

25240115 is an equidigital number, since it uses as much as digits as its factorization.

25240115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69229.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 25240115 is about 5023.9541200134. The cubic root of 25240115 is about 293.3349266729.

Adding to 25240115 its reverse (51104252), we get a palindrome (76344367).

The spelling of 25240115 in words is "twenty-five million, two hundred forty thousand, one hundred fifteen".