25824164 has 6 divisors (see below), whose sum is σ = 45192294. Its totient is φ = 12912080.

The previous prime is 25824163. The next prime is 25824199. The reversal of 25824164 is 46142852.

It can be written as a sum of positive squares in only one way, i.e., 16337764 + 9486400 = 4042^2 + 3080^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25824164.

It is not an unprimeable number, because it can be changed into a prime (25824163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228017 + ... + 3228024.

It is an arithmetic number, because the mean of its divisors is an integer number (7532049).

Almost surely, 2^25824164 is an apocalyptic number.

It is an amenable number.

25824164 is a deficient number, since it is larger than the sum of its proper divisors (19368130).

25824164 is a wasteful number, since it uses less digits than its factorization.

25824164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456045 (or 6456043 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 25824164 is about 5081.7481244155. The cubic root of 25824164 is about 295.5802578793.

The spelling of 25824164 in words is "twenty-five million, eight hundred twenty-four thousand, one hundred sixty-four".