25853040 has 80 divisors (see below), whose sum is σ = 89056800. Its totient is φ = 6893568.

The previous prime is 25852991. The next prime is 25853041. The reversal of 25853040 is 4035852.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 25852995 and 25853013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25853041) 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, 3825 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (1113210).

Almost surely, 2^25853040 is an apocalyptic number.

25853040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25853040 is an abundant number, since it is smaller than the sum of its proper divisors (63203760).

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

25853040 is a wasteful number, since it uses less digits than its factorization.

25853040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991 (or 11979 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25853040 is about 5084.5884789233. The cubic root of 25853040 is about 295.6903872426.

Adding to 25853040 its reverse (4035852), we get a palindrome (29888892).

It can be divided in two parts, 2585 and 3040, that added together give a square (5625 = 75²).

The spelling of 25853040 in words is "twenty-five million, eight hundred fifty-three thousand, forty".