25000247 has 8 divisors (see below), whose sum is σ = 25505280. Its totient is φ = 24498040.

The previous prime is 25000231. The next prime is 25000267. The reversal of 25000247 is 74200052.

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 25000247 - 2⁴ = 25000231 is a prime.

It is a super-2 number, since 2×25000247² = 1250024700122018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28538 + ... + 29400.

It is an arithmetic number, because the mean of its divisors is an integer number (3188160).

Almost surely, 2^25000247 is an apocalyptic number.

25000247 is a deficient number, since it is larger than the sum of its proper divisors (505033).

25000247 is an equidigital number, since it uses as much as digits as its factorization.

25000247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 25000247 is about 5000.0246999390. The cubic root of 25000247 is about 292.4027367946.

Adding to 25000247 its reverse (74200052), we get a palindrome (99200299).

The spelling of 25000247 in words is "twenty-five million, two hundred forty-seven", and thus it is an aban number.