253604506 has 16 divisors (see below), whose sum is σ = 383734728. Its totient is φ = 125697600.

The previous prime is 253604503. The next prime is 253604513. The reversal of 253604506 is 605406352.

It can be written as a sum of positive squares in 4 ways, for example, as 101304225 + 152300281 = 10065^2 + 12341^2 .

It is not an unprimeable number, because it can be changed into a prime (253604503) 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, 144796 + ... + 146536.

Almost surely, 2^253604506 is an apocalyptic number.

253604506 is a deficient number, since it is larger than the sum of its proper divisors (130130222).

253604506 is a wasteful number, since it uses less digits than its factorization.

253604506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 253604506 is about 15924.9648665233. The cubic root of 253604506 is about 632.9736850650.

The spelling of 253604506 in words is "two hundred fifty-three million, six hundred four thousand, five hundred six".