253116436 has 12 divisors (see below), whose sum is σ = 443065140. Its totient is φ = 126526400.

The previous prime is 253116433. The next prime is 253116503. The reversal of 253116436 is 634611352.

It can be written as a sum of positive squares in 2 ways, for example, as 168844036 + 84272400 = 12994^2 + 9180^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253116398 and 253116407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253116433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27600 + ... + 35608.

It is an arithmetic number, because the mean of its divisors is an integer number (36922095).

Almost surely, 2^253116436 is an apocalyptic number.

It is an amenable number.

253116436 is a deficient number, since it is larger than the sum of its proper divisors (189948704).

253116436 is a wasteful number, since it uses less digits than its factorization.

253116436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15914 (or 15912 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 253116436 is about 15909.6334338664. The cubic root of 253116436 is about 632.5673649133.

Adding to 253116436 its reverse (634611352), we get a palindrome (887727788).

The spelling of 253116436 in words is "two hundred fifty-three million, one hundred sixteen thousand, four hundred thirty-six".