25817064 has 64 divisors (see below), whose sum is σ = 79443840. Its totient is φ = 6808320.

The previous prime is 25817039. The next prime is 25817069. The reversal of 25817064 is 46071852.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25817069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727 + ... + 8094.

It is an arithmetic number, because the mean of its divisors is an integer number (1241310).

Almost surely, 2^25817064 is an apocalyptic number.

25817064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25817064 is an abundant number, since it is smaller than the sum of its proper divisors (53626776).

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

25817064 is a wasteful number, since it uses less digits than its factorization.

25817064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11850 (or 11846 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 25817064 is about 5081.0494978892. The cubic root of 25817064 is about 295.5531668159.

The spelling of 25817064 in words is "twenty-five million, eight hundred seventeen thousand, sixty-four".