25300280050 has 24 divisors (see below), whose sum is σ = 48681231300. Its totient is φ = 9771142080.

The previous prime is 25300280023. The next prime is 25300280051. The reversal of 25300280050 is 5008200352.

It can be written as a sum of positive squares in 6 ways, for example, as 2230011729 + 23070268321 = 47223^2 + 151889^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 25300279997 and 25300280024.

It is not an unprimeable number, because it can be changed into a prime (25300280051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8722785 + ... + 8725684.

Almost surely, 2^25300280050 is an apocalyptic number.

25300280050 is a deficient number, since it is larger than the sum of its proper divisors (23380951250).

25300280050 is a wasteful number, since it uses less digits than its factorization.

25300280050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17448510 (or 17448505 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 25300280050 in words is "twenty-five billion, three hundred million, two hundred eighty thousand, fifty".