25703040 has 128 divisors (see below), whose sum is σ = 89449920. Its totient is φ = 6225920.

The previous prime is 25703017. The next prime is 25703053. The reversal of 25703040 is 4030752.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 25702998 and 25703016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20512 + ... + 21728.

Almost surely, 2^25703040 is an apocalyptic number.

25703040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25703040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44724960).

25703040 is an abundant number, since it is smaller than the sum of its proper divisors (63746880).

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

25703040 is a wasteful number, since it uses less digits than its factorization.

25703040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 25703040 is about 5069.8165647289. The cubic root of 25703040 is about 295.1174099342.

Adding to 25703040 its reverse (4030752), we get a palindrome (29733792).

It can be divided in two parts, 25 and 703040, that multiplied together give a cube (17576000 = 260³).

The spelling of 25703040 in words is "twenty-five million, seven hundred three thousand, forty".