250305530 has 16 divisors (see below), whose sum is σ = 456897024. Its totient is φ = 98711760.

The previous prime is 250305521. The next prime is 250305541. The reversal of 250305530 is 35503052.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 250305496 and 250305505.

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, 175562 + ... + 176981.

It is an arithmetic number, because the mean of its divisors is an integer number (28556064).

Almost surely, 2^250305530 is an apocalyptic number.

250305530 is a deficient number, since it is larger than the sum of its proper divisors (206591494).

250305530 is a wasteful number, since it uses less digits than its factorization.

250305530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352621.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 250305530 is about 15821.0470576381. The cubic root of 250305530 is about 630.2170495934.

Adding to 250305530 its reverse (35503052), we get a palindrome (285808582).

The spelling of 250305530 in words is "two hundred fifty million, three hundred five thousand, five hundred thirty".