253006538 has 8 divisors (see below), whose sum is σ = 379617888. Its totient is φ = 126467244.

The previous prime is 253006519. The next prime is 253006541. The reversal of 253006538 is 835600352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 8156 + ... + 23927.

It is an arithmetic number, because the mean of its divisors is an integer number (47452236).

Almost surely, 2^253006538 is an apocalyptic number.

253006538 is a deficient number, since it is larger than the sum of its proper divisors (126611350).

253006538 is a wasteful number, since it uses less digits than its factorization.

253006538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36028.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 253006538 is about 15906.1792395283. The cubic root of 253006538 is about 632.4758023728.

The spelling of 253006538 in words is "two hundred fifty-three million, six thousand, five hundred thirty-eight".