25020004 has 27 divisors (see below), whose sum is σ = 45626763. Its totient is φ = 12004800.

The previous prime is 25020001. The next prime is 25020019. The reversal of 25020004 is 40002052.

It is a happy number.

The square root of 25020004 is 5002.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 21178404 + 3841600 = 4602^2 + 1960^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25020001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 410134 + ... + 410194.

Almost surely, 2^25020004 is an apocalyptic number.

25020004 is the 5002-nd square number.

It is an amenable number.

25020004 is a deficient number, since it is larger than the sum of its proper divisors (20606759).

25020004 is an equidigital number, since it uses as much as digits as its factorization.

25020004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The cubic root of 25020004 is about 292.4797424303.

Adding to 25020004 its reverse (40002052), we get a palindrome (65022056).

The spelling of 25020004 in words is "twenty-five million, twenty thousand, four".