253664535 has 32 divisors (see below), whose sum is σ = 434257920. Its totient is φ = 126057600.

The previous prime is 253664501. The next prime is 253664549. The reversal of 253664535 is 535466352.

It is not a de Polignac number, because 253664535 - 2¹² = 253660439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253664493 and 253664502.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 10090 + ... + 24680.

It is an arithmetic number, because the mean of its divisors is an integer number (13570560).

Almost surely, 2^253664535 is an apocalyptic number.

253664535 is a deficient number, since it is larger than the sum of its proper divisors (180593385).

253664535 is a wasteful number, since it uses less digits than its factorization.

253664535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14679.

The product of its digits is 324000, while the sum is 39.

The square root of 253664535 is about 15926.8495001366. The cubic root of 253664535 is about 633.0236234255.

The spelling of 253664535 in words is "two hundred fifty-three million, six hundred sixty-four thousand, five hundred thirty-five".