253430210 has 32 divisors (see below), whose sum is σ = 502593984. Its totient is φ = 91240000.

The previous prime is 253430167. The next prime is 253430213. The reversal of 253430210 is 12034352.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253430213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296 + ... + 22515.

It is an arithmetic number, because the mean of its divisors is an integer number (15706062).

Almost surely, 2^253430210 is an apocalyptic number.

253430210 is a deficient number, since it is larger than the sum of its proper divisors (249163774).

253430210 is a wasteful number, since it uses less digits than its factorization.

253430210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22930.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 253430210 is about 15919.4915119799. The cubic root of 253430210 is about 632.8286428662.

Adding to 253430210 its reverse (12034352), we get a palindrome (265464562).

The spelling of 253430210 in words is "two hundred fifty-three million, four hundred thirty thousand, two hundred ten".