25852215 has 8 divisors (see below), whose sum is σ = 41363568. Its totient is φ = 13787840.

The previous prime is 25852201. The next prime is 25852237. The reversal of 25852215 is 51225852.

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

It is not a de Polignac number, because 25852215 - 2⁹ = 25851703 is a prime.

It is a congruent 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, 861726 + ... + 861755.

It is an arithmetic number, because the mean of its divisors is an integer number (5170446).

Almost surely, 2^25852215 is an apocalyptic number.

25852215 is a deficient number, since it is larger than the sum of its proper divisors (15511353).

25852215 is a wasteful number, since it uses less digits than its factorization.

25852215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723489.

The product of its digits is 8000, while the sum is 30.

The square root of 25852215 is about 5084.5073507666. The cubic root of 25852215 is about 295.6872419366.

The spelling of 25852215 in words is "twenty-five million, eight hundred fifty-two thousand, two hundred fifteen".