25303340 has 12 divisors (see below), whose sum is σ = 53137056. Its totient is φ = 10121328.

The previous prime is 25303337. The next prime is 25303357. The reversal of 25303340 is 4330352.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1265167 = 25303340 / (2 + 5 + 3 + 0 + 3 + 3 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632564 + ... + 632603.

It is an arithmetic number, because the mean of its divisors is an integer number (4428088).

Almost surely, 2^25303340 is an apocalyptic number.

25303340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25303340 is an abundant number, since it is smaller than the sum of its proper divisors (27833716).

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

25303340 is a wasteful number, since it uses less digits than its factorization.

25303340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265176 (or 1265174 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 25303340 is about 5030.2425388842. The cubic root of 25303340 is about 293.5796513453.

Adding to 25303340 its reverse (4330352), we get a palindrome (29633692).

The spelling of 25303340 in words is "twenty-five million, three hundred three thousand, three hundred forty".