25280530250 has 16 divisors (see below), whose sum is σ = 47325153096. Its totient is φ = 10112212000.

The previous prime is 25280530241. The next prime is 25280530271. The reversal of 25280530250 is 5203508252.

It can be written as a sum of positive squares in 4 ways, for example, as 6183777769 + 19096752481 = 78637^2 + 138191^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50560811 + ... + 50561310.

Almost surely, 2^25280530250 is an apocalyptic number.

25280530250 is a deficient number, since it is larger than the sum of its proper divisors (22044622846).

25280530250 is a wasteful number, since it uses less digits than its factorization.

25280530250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101122138 (or 101122128 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 25280530250 in words is "twenty-five billion, two hundred eighty million, five hundred thirty thousand, two hundred fifty".