25986628 has 12 divisors (see below), whose sum is σ = 45541692. Its totient is φ = 12974720.

The previous prime is 25986559. The next prime is 25986637. The reversal of 25986628 is 82668952.

It can be written as a sum of positive squares in 2 ways, for example, as 9193024 + 16793604 = 3032^2 + 4098^2 .

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, 1225 + ... + 7312.

It is an arithmetic number, because the mean of its divisors is an integer number (3795141).

Almost surely, 2^25986628 is an apocalyptic number.

It is an amenable number.

25986628 is a deficient number, since it is larger than the sum of its proper divisors (19555064).

25986628 is a wasteful number, since it uses less digits than its factorization.

25986628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302 (or 9300 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 25986628 is about 5097.7081124756. The cubic root of 25986628 is about 296.1988103142.

The spelling of 25986628 in words is "twenty-five million, nine hundred eighty-six thousand, six hundred twenty-eight".