25852989 has 8 divisors (see below), whose sum is σ = 35969472. Its totient is φ = 16485920.

The previous prime is 25852979. The next prime is 25852991. The reversal of 25852989 is 98925852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25852989 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25852909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187272 + ... + 187409.

It is an arithmetic number, because the mean of its divisors is an integer number (4496184).

Almost surely, 2^25852989 is an apocalyptic number.

It is an amenable number.

25852989 is a deficient number, since it is larger than the sum of its proper divisors (10116483).

25852989 is a wasteful number, since it uses less digits than its factorization.

25852989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374707.

The product of its digits is 518400, while the sum is 48.

The square root of 25852989 is about 5084.5834637657. The cubic root of 25852989 is about 295.6901928075.

The spelling of 25852989 in words is "twenty-five million, eight hundred fifty-two thousand, nine hundred eighty-nine".