25530030250 has 32 divisors (see below), whose sum is σ = 47806267392. Its totient is φ = 10209010000.

The previous prime is 25530030233. The next prime is 25530030263. The reversal of 25530030250 is 5203003552.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964695 + ... + 990805.

It is an arithmetic number, because the mean of its divisors is an integer number (1493945856).

Almost surely, 2^25530030250 is an apocalyptic number.

25530030250 is a deficient number, since it is larger than the sum of its proper divisors (22276237142).

25530030250 is a wasteful number, since it uses less digits than its factorization.

25530030250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30039 (or 30029 counting only the distinct ones).

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

The spelling of 25530030250 in words is "twenty-five billion, five hundred thirty million, thirty thousand, two hundred fifty".