253620104 has 24 divisors (see below), whose sum is σ = 482784510. Its totient is φ = 124883136.

The previous prime is 253620091. The next prime is 253620179. The reversal of 253620104 is 401026352.

It can be written as a sum of positive squares in only one way, i.e., 210192004 + 43428100 = 14498^2 + 6590^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253620104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 384527 + ... + 385185.

Almost surely, 2^253620104 is an apocalyptic number.

It is an amenable number.

253620104 is a deficient number, since it is larger than the sum of its proper divisors (229164406).

253620104 is an frugal number, since it uses more digits than its factorization.

253620104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 253620104 is about 15925.4545931976. The cubic root of 253620104 is about 632.9866618601.

Adding to 253620104 its reverse (401026352), we get a palindrome (654646456).

The spelling of 253620104 in words is "two hundred fifty-three million, six hundred twenty thousand, one hundred four".