25243002 has 20 divisors (see below), whose sum is σ = 56563386. Its totient is φ = 8414280.

The previous prime is 25242979. The next prime is 25243007. The reversal of 25243002 is 20034252.

It can be written as a sum of positive squares in only one way, i.e., 16475481 + 8767521 = 4059^2 + 2961^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (25243007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77749 + ... + 78072.

Almost surely, 2^25243002 is an apocalyptic number.

25243002 is an abundant number, since it is smaller than the sum of its proper divisors (31320384).

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

25243002 is a wasteful number, since it uses less digits than its factorization.

25243002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155835 (or 155826 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 25243002 is about 5024.2414352815. The cubic root of 25243002 is about 293.3461102676.

Adding to 25243002 its reverse (20034252), we get a palindrome (45277254).

The spelling of 25243002 in words is "twenty-five million, two hundred forty-three thousand, two".