25921030 has 8 divisors (see below), whose sum is σ = 46657872. Its totient is φ = 10368408.

The previous prime is 25920989. The next prime is 25921037. The reversal of 25921030 is 3012952.

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

It is a junction number, because it is equal to n+sod(n) for n = 25920992 and 25921010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25921037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296042 + ... + 1296061.

It is an arithmetic number, because the mean of its divisors is an integer number (5832234).

Almost surely, 2^25921030 is an apocalyptic number.

25921030 is a deficient number, since it is larger than the sum of its proper divisors (20736842).

25921030 is a wasteful number, since it uses less digits than its factorization.

25921030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592110.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 25921030 is about 5091.2699790917. The cubic root of 25921030 is about 295.9493689270.

Adding to 25921030 its reverse (3012952), we get a palindrome (28933982).

The spelling of 25921030 in words is "twenty-five million, nine hundred twenty-one thousand, thirty".