25530003025 has 12 divisors (see below), whose sum is σ = 31807244464. Its totient is φ = 20327202000.

The previous prime is 25530003017. The next prime is 25530003061. The reversal of 25530003025 is 52030003552.

It is not a de Polignac number, because 25530003025 - 2³ = 25530003017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2414631 + ... + 2425180.

Almost surely, 2^25530003025 is an apocalyptic number.

25530003025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25530003025 is a deficient number, since it is larger than the sum of its proper divisors (6277241439).

25530003025 is a wasteful number, since it uses less digits than its factorization.

25530003025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840032 (or 4840027 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 25530003025 its reverse (52030003552), we get a palindrome (77560006577).

The spelling of 25530003025 in words is "twenty-five billion, five hundred thirty million, three thousand, twenty-five".