25308730 has 8 divisors (see below), whose sum is σ = 45555732. Its totient is φ = 10123488.

The previous prime is 25308727. The next prime is 25308737. The reversal of 25308730 is 3780352.

It can be written as a sum of positive squares in 2 ways, for example, as 24890121 + 418609 = 4989^2 + 647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25308737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265427 + ... + 1265446.

Almost surely, 2^25308730 is an apocalyptic number.

25308730 is a deficient number, since it is larger than the sum of its proper divisors (20247002).

25308730 is a wasteful number, since it uses less digits than its factorization.

25308730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530880.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 25308730 is about 5030.7782698107. The cubic root of 25308730 is about 293.6004955234.

The spelling of 25308730 in words is "twenty-five million, three hundred eight thousand, seven hundred thirty".