2505250730 has 16 divisors (see below), whose sum is σ = 4774713480. Its totient is φ = 943153152.

The previous prime is 2505250721. The next prime is 2505250777. The reversal of 2505250730 is 370525052.

2505250730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2211162529 + 294088201 = 47023^2 + 17149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2505250693 and 2505250702.

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, 7368215 + ... + 7368554.

Almost surely, 2^2505250730 is an apocalyptic number.

2505250730 is a deficient number, since it is larger than the sum of its proper divisors (2269462750).

2505250730 is a wasteful number, since it uses less digits than its factorization.

2505250730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14736793.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 2505250730 is about 50052.4797587492. The cubic root of 2505250730 is about 1358.1583221228.

Adding to 2505250730 its reverse (370525052), we get a palindrome (2875775782).

The spelling of 2505250730 in words is "two billion, five hundred five million, two hundred fifty thousand, seven hundred thirty".