253005430 has 16 divisors (see below), whose sum is σ = 462876624. Its totient is φ = 99542880.

The previous prime is 253005317. The next prime is 253005439. The reversal of 253005430 is 34500352.

253005430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253005439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206772 + ... + 207991.

It is an arithmetic number, because the mean of its divisors is an integer number (28929789).

Almost surely, 2^253005430 is an apocalyptic number.

253005430 is a deficient number, since it is larger than the sum of its proper divisors (209871194).

253005430 is a wasteful number, since it uses less digits than its factorization.

253005430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414831.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 253005430 is about 15906.1444102586. The cubic root of 253005430 is about 632.4748790973.

Adding to 253005430 its reverse (34500352), we get a palindrome (287505782).

The spelling of 253005430 in words is "two hundred fifty-three million, five thousand, four hundred thirty".