25840315 has 8 divisors (see below), whose sum is σ = 31328640. Its totient is φ = 20458752.

The previous prime is 25840313. The next prime is 25840337. The reversal of 25840315 is 51304852.

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 25840315 - 2¹ = 25840313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25840313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26155 + ... + 27124.

It is an arithmetic number, because the mean of its divisors is an integer number (3916080).

Almost surely, 2^25840315 is an apocalyptic number.

25840315 is a deficient number, since it is larger than the sum of its proper divisors (5488325).

25840315 is an equidigital number, since it uses as much as digits as its factorization.

25840315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53381.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25840315 is about 5083.3369945342. The cubic root of 25840315 is about 295.6418658349.

The spelling of 25840315 in words is "twenty-five million, eight hundred forty thousand, three hundred fifteen".