25830290 has 8 divisors (see below), whose sum is σ = 46494540. Its totient is φ = 10332112.

The previous prime is 25830289. The next prime is 25830317. The reversal of 25830290 is 9203852.

It can be written as a sum of positive squares in 2 ways, for example, as 25411681 + 418609 = 5041^2 + 647^2 .

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

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, 1291505 + ... + 1291524.

Almost surely, 2^25830290 is an apocalyptic number.

25830290 is a deficient number, since it is larger than the sum of its proper divisors (20664250).

25830290 is a wasteful number, since it uses less digits than its factorization.

25830290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583036.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 25830290 is about 5082.3508340137. The cubic root of 25830290 is about 295.6036285164.

The spelling of 25830290 in words is "twenty-five million, eight hundred thirty thousand, two hundred ninety".