25829121 has 8 divisors (see below), whose sum is σ = 34619904. Its totient is φ = 17128880.

The previous prime is 25829099. The next prime is 25829147. The reversal of 25829121 is 12192852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25829121 - 2⁷ = 25828993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25829191) 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, 21966 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (4327488).

Almost surely, 2^25829121 is an apocalyptic number.

It is an amenable number.

25829121 is a deficient number, since it is larger than the sum of its proper divisors (8790783).

25829121 is a wasteful number, since it uses less digits than its factorization.

25829121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45271.

The product of its digits is 2880, while the sum is 30.

The square root of 25829121 is about 5082.2358268778. The cubic root of 25829121 is about 295.5991690768.

The spelling of 25829121 in words is "twenty-five million, eight hundred twenty-nine thousand, one hundred twenty-one".