25098491 has 8 divisors (see below), whose sum is σ = 27556464. Its totient is φ = 22669920.

The previous prime is 25098481. The next prime is 25098503. The reversal of 25098491 is 19489052.

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 25098491 - 2¹⁴ = 25082107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25098431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5540 + ... + 8993.

It is an arithmetic number, because the mean of its divisors is an integer number (3444558).

Almost surely, 2^25098491 is an apocalyptic number.

25098491 is a deficient number, since it is larger than the sum of its proper divisors (2457973).

25098491 is a wasteful number, since it uses less digits than its factorization.

25098491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14701.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 25098491 is about 5009.8394185842. The cubic root of 25098491 is about 292.7852565747.

The spelling of 25098491 in words is "twenty-five million, ninety-eight thousand, four hundred ninety-one".