253953728585 has 16 divisors (see below), whose sum is σ = 320797627200. Its totient is φ = 192461812416.

The previous prime is 253953728573. The next prime is 253953728599. The reversal of 253953728585 is 585827359352.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253953728585 is a prime.

It is a super-2 number, since 2×253953728585² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2947082 + ... + 3032028.

It is an arithmetic number, because the mean of its divisors is an integer number (20049851700).

Almost surely, 2^253953728585 is an apocalyptic number.

It is an amenable number.

253953728585 is a deficient number, since it is larger than the sum of its proper divisors (66843898615).

253953728585 is a wasteful number, since it uses less digits than its factorization.

253953728585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116440.

The product of its digits is 90720000, while the sum is 62.

The spelling of 253953728585 in words is "two hundred fifty-three billion, nine hundred fifty-three million, seven hundred twenty-eight thousand, five hundred eighty-five".