25128241 has 8 divisors (see below), whose sum is σ = 26787200. Its totient is φ = 23502960.

The previous prime is 25128223. The next prime is 25128263. The reversal of 25128241 is 14282152.

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 25128241 - 2¹⁷ = 24997169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25128541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6870 + ... + 9871.

It is an arithmetic number, because the mean of its divisors is an integer number (3348400).

Almost surely, 2^25128241 is an apocalyptic number.

It is an amenable number.

25128241 is a deficient number, since it is larger than the sum of its proper divisors (1658959).

25128241 is a wasteful number, since it uses less digits than its factorization.

25128241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16839.

The product of its digits is 1280, while the sum is 25.

The square root of 25128241 is about 5012.8076962916. The cubic root of 25128241 is about 292.9008933022.

The spelling of 25128241 in words is "twenty-five million, one hundred twenty-eight thousand, two hundred forty-one".