25720304 has 10 divisors (see below), whose sum is σ = 49833120. Its totient is φ = 12860144.

The previous prime is 25720273. The next prime is 25720307. The reversal of 25720304 is 40302752.

It is a self number, because there is not a number n which added to its sum of digits gives 25720304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25720307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803744 + ... + 803775.

It is an arithmetic number, because the mean of its divisors is an integer number (4983312).

Almost surely, 2^25720304 is an apocalyptic number.

It is an amenable number.

25720304 is a deficient number, since it is larger than the sum of its proper divisors (24112816).

25720304 is a wasteful number, since it uses less digits than its factorization.

25720304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607527 (or 1607521 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 25720304 is about 5071.5189046281. The cubic root of 25720304 is about 295.1834691330.

The spelling of 25720304 in words is "twenty-five million, seven hundred twenty thousand, three hundred four".