250740530 has 16 divisors (see below), whose sum is σ = 475087680. Its totient is φ = 95017392.

The previous prime is 250740517. The next prime is 250740541. The reversal of 250740530 is 35047052.

It is a self number, because there is not a number n which added to its sum of digits gives 250740530.

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 7 ways as a sum of consecutive naturals, for example, 659654 + ... + 660033.

It is an arithmetic number, because the mean of its divisors is an integer number (29692980).

Almost surely, 2^250740530 is an apocalyptic number.

250740530 is a deficient number, since it is larger than the sum of its proper divisors (224347150).

250740530 is a wasteful number, since it uses less digits than its factorization.

250740530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319713.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 250740530 is about 15834.7885997888. The cubic root of 250740530 is about 630.5819180271.

Adding to 250740530 its reverse (35047052), we get a palindrome (285787582).

The spelling of 250740530 in words is "two hundred fifty million, seven hundred forty thousand, five hundred thirty".