25001315 has 4 divisors (see below), whose sum is σ = 30001584. Its totient is φ = 20001048.

The previous prime is 25001303. The next prime is 25001329. The reversal of 25001315 is 51310052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25001315 - 2⁸ = 25001059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25001293 and 25001302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500127 + ... + 2500136.

It is an arithmetic number, because the mean of its divisors is an integer number (7500396).

Almost surely, 2^25001315 is an apocalyptic number.

25001315 is a deficient number, since it is larger than the sum of its proper divisors (5000269).

25001315 is an equidigital number, since it uses as much as digits as its factorization.

25001315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000268.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 25001315 is about 5000.1314982708. The cubic root of 25001315 is about 292.4069005092.

Adding to 25001315 its reverse (51310052), we get a palindrome (76311367).

The spelling of 25001315 in words is "twenty-five million, one thousand, three hundred fifteen".