25382144 has 18 divisors (see below), whose sum is σ = 50665650. Its totient is φ = 12690944.

The previous prime is 25382141. The next prime is 25382153. The reversal of 25382144 is 44128352.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24127744 + 1254400 = 4912^2 + 1120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25382141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49319 + ... + 49830.

Almost surely, 2^25382144 is an apocalyptic number.

It is an amenable number.

25382144 is a deficient number, since it is larger than the sum of its proper divisors (25283506).

25382144 is an frugal number, since it uses more digits than its factorization.

25382144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99165 (or 99151 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 25382144 is about 5038.0694715337. The cubic root of 25382144 is about 293.8841075299.

The spelling of 25382144 in words is "twenty-five million, three hundred eighty-two thousand, one hundred forty-four".