253013636 has 24 divisors (see below), whose sum is σ = 449961120. Its totient is φ = 124468992.

The previous prime is 253013611. The next prime is 253013701. The reversal of 253013636 is 636310352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 253013599 and 253013608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 67631 + ... + 71273.

It is an arithmetic number, because the mean of its divisors is an integer number (18748380).

Almost surely, 2^253013636 is an apocalyptic number.

It is an amenable number.

253013636 is a deficient number, since it is larger than the sum of its proper divisors (196947484).

253013636 is a wasteful number, since it uses less digits than its factorization.

253013636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923 (or 3921 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 253013636 is about 15906.4023587988. The cubic root of 253013636 is about 632.4817169383.

Adding to 253013636 its reverse (636310352), we get a palindrome (889323988).

The spelling of 253013636 in words is "two hundred fifty-three million, thirteen thousand, six hundred thirty-six".