25129315 has 16 divisors (see below), whose sum is σ = 32093280. Its totient is φ = 18823680.

The previous prime is 25129309. The next prime is 25129333. The reversal of 25129315 is 51392152.

It is not a de Polignac number, because 25129315 - 2¹³ = 25121123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18820 + ... + 20110.

It is an arithmetic number, because the mean of its divisors is an integer number (2005830).

Almost surely, 2^25129315 is an apocalyptic number.

25129315 is a deficient number, since it is larger than the sum of its proper divisors (6963965).

25129315 is a wasteful number, since it uses less digits than its factorization.

25129315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 2700, while the sum is 28.

The square root of 25129315 is about 5012.9148207405. The cubic root of 25129315 is about 292.9050661779.

The spelling of 25129315 in words is "twenty-five million, one hundred twenty-nine thousand, three hundred fifteen".