25947630 has 24 divisors (see below), whose sum is σ = 67464072. Its totient is φ = 6919344.

The previous prime is 25947613. The next prime is 25947637. The reversal of 25947630 is 3674952.

25947630 is a `hidden beast` number, since 2 + 594 + 7 + 63 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25947637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144064 + ... + 144243.

It is an arithmetic number, because the mean of its divisors is an integer number (2811003).

Almost surely, 2^25947630 is an apocalyptic number.

25947630 is an abundant number, since it is smaller than the sum of its proper divisors (41516442).

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

25947630 is a wasteful number, since it uses less digits than its factorization.

25947630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288320 (or 288317 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 25947630 is about 5093.8816240663. The cubic root of 25947630 is about 296.0505681197.

The spelling of 25947630 in words is "twenty-five million, nine hundred forty-seven thousand, six hundred thirty".