25821068 has 24 divisors (see below), whose sum is σ = 55615392. Its totient is φ = 10214784.

The previous prime is 25821053. The next prime is 25821091. The reversal of 25821068 is 86012852.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35105 + ... + 35832.

It is an arithmetic number, because the mean of its divisors is an integer number (2317308).

Almost surely, 2^25821068 is an apocalyptic number.

25821068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25821068 is an abundant number, since it is smaller than the sum of its proper divisors (29794324).

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

25821068 is a wasteful number, since it uses less digits than its factorization.

25821068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70961 (or 70959 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 25821068 is about 5081.4434957008. The cubic root of 25821068 is about 295.5684452600.

The spelling of 25821068 in words is "twenty-five million, eight hundred twenty-one thousand, sixty-eight".