25340256 has 96 divisors (see below), whose sum is σ = 74793600. Its totient is φ = 8346240.

The previous prime is 25340233. The next prime is 25340257. The reversal of 25340256 is 65204352.

25340256 is a `hidden beast` number, since 253 + 402 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25340257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119991 + ... + 120201.

It is an arithmetic number, because the mean of its divisors is an integer number (779100).

Almost surely, 2^25340256 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 25340256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37396800).

25340256 is an abundant number, since it is smaller than the sum of its proper divisors (49453344).

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

25340256 is a wasteful number, since it uses less digits than its factorization.

25340256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25340256 is about 5033.9106070728. The cubic root of 25340256 is about 293.7223534567.

The spelling of 25340256 in words is "twenty-five million, three hundred forty thousand, two hundred fifty-six".