25498329 has 12 divisors (see below), whose sum is σ = 35542416. Its totient is φ = 16258792.

The previous prime is 25498307. The next prime is 25498349. The reversal of 25498329 is 92389452.

It is not a de Polignac number, because 25498329 - 2⁸ = 25498073 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (25498349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6447 + ... + 9620.

It is an arithmetic number, because the mean of its divisors is an integer number (2961868).

Almost surely, 2^25498329 is an apocalyptic number.

It is an amenable number.

25498329 is a deficient number, since it is larger than the sum of its proper divisors (10044087).

25498329 is a wasteful number, since it uses less digits than its factorization.

25498329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16116 (or 16093 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 25498329 is about 5049.5870128160. The cubic root of 25498329 is about 294.3318364326.

It can be divided in two parts, 2549 and 8329, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 25498329 in words is "twenty-five million, four hundred ninety-eight thousand, three hundred twenty-nine".