25379215 has 8 divisors (see below), whose sum is σ = 32246640. Its totient is φ = 19108992.

The previous prime is 25379213. The next prime is 25379219. The reversal of 25379215 is 51297352.

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 25379215 - 2¹ = 25379213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25379213) 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, 149205 + ... + 149374.

It is an arithmetic number, because the mean of its divisors is an integer number (4030830).

Almost surely, 2^25379215 is an apocalyptic number.

25379215 is a deficient number, since it is larger than the sum of its proper divisors (6867425).

25379215 is a wasteful number, since it uses less digits than its factorization.

25379215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298601.

The product of its digits is 18900, while the sum is 34.

The square root of 25379215 is about 5037.7787764053. The cubic root of 25379215 is about 293.8728027367.

The spelling of 25379215 in words is "twenty-five million, three hundred seventy-nine thousand, two hundred fifteen".