25260256 has 48 divisors (see below), whose sum is σ = 59318784. Its totient is φ = 10353024.

The previous prime is 25260251. The next prime is 25260259. The reversal of 25260256 is 65206252.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25260251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2701 + ... + 7603.

It is an arithmetic number, because the mean of its divisors is an integer number (1235808).

Almost surely, 2^25260256 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 25260256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29659392).

25260256 is an abundant number, since it is smaller than the sum of its proper divisors (34058528).

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

25260256 is a wasteful number, since it uses less digits than its factorization.

25260256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943 (or 4935 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 25260256 is about 5025.9582170965. The cubic root of 25260256 is about 293.4129306487.

It can be divided in two parts, 25 and 260256, that added together give a triangular number (260281 = T₇₂₁).

The spelling of 25260256 in words is "twenty-five million, two hundred sixty thousand, two hundred fifty-six".