25489056 has 24 divisors (see below), whose sum is σ = 66909024. Its totient is φ = 8496320.

The previous prime is 25489049. The next prime is 25489081. The reversal of 25489056 is 65098452.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×25489056² = 1299383951542272, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 132660 + ... + 132851.

It is an arithmetic number, because the mean of its divisors is an integer number (2787876).

Almost surely, 2^25489056 is an apocalyptic number.

It is an amenable number.

25489056 is an abundant number, since it is smaller than the sum of its proper divisors (41419968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25489056 is a wasteful number, since it uses less digits than its factorization.

25489056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265524 (or 265516 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 25489056 is about 5048.6687354193. The cubic root of 25489056 is about 294.2961521328.

The spelling of 25489056 in words is "twenty-five million, four hundred eighty-nine thousand, fifty-six".