25489190 has 16 divisors (see below), whose sum is σ = 45944928. Its totient is φ = 10181376.

The previous prime is 25489169. The next prime is 25489199. The reversal of 25489190 is 9198452.

It is a super-2 number, since 2×25489190² = 1299397613712200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25489199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8534 + ... + 11126.

It is an arithmetic number, because the mean of its divisors is an integer number (2871558).

Almost surely, 2^25489190 is an apocalyptic number.

25489190 is a deficient number, since it is larger than the sum of its proper divisors (20455738).

25489190 is a wasteful number, since it uses less digits than its factorization.

25489190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583.

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

The square root of 25489190 is about 5048.6820062270. The cubic root of 25489190 is about 294.2966678524.

The spelling of 25489190 in words is "twenty-five million, four hundred eighty-nine thousand, one hundred ninety".