25289456 has 40 divisors (see below), whose sum is σ = 52861200. Its totient is φ = 11681280.

The previous prime is 25289377. The next prime is 25289477. The reversal of 25289456 is 65498252.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11450 + ... + 13478.

It is an arithmetic number, because the mean of its divisors is an integer number (1321530).

Almost surely, 2^25289456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25289456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26430600).

25289456 is an abundant number, since it is smaller than the sum of its proper divisors (27571744).

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

25289456 is a wasteful number, since it uses less digits than its factorization.

25289456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2091 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 25289456 is about 5028.8622967824. The cubic root of 25289456 is about 293.5259455813.

The spelling of 25289456 in words is "twenty-five million, two hundred eighty-nine thousand, four hundred fifty-six".