253502783285 has 8 divisors (see below), whose sum is σ = 304331332056. Its totient is φ = 202716898560.

The previous prime is 253502783251. The next prime is 253502783297. The reversal of 253502783285 is 582387205352.

It can be written as a sum of positive squares in 4 ways, for example, as 62248753009 + 191254030276 = 249497^2 + 437326^2 .

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

It is not a de Polignac number, because 253502783285 - 2¹⁰ = 253502782261 is a prime.

It is a super-2 number, since 2×253502783285² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10652936 + ... + 10676705.

It is an arithmetic number, because the mean of its divisors is an integer number (38041416507).

Almost surely, 2^253502783285 is an apocalyptic number.

It is an amenable number.

253502783285 is a deficient number, since it is larger than the sum of its proper divisors (50828548771).

253502783285 is a wasteful number, since it uses less digits than its factorization.

253502783285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21332023.

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 253502783285 in words is "two hundred fifty-three billion, five hundred two million, seven hundred eighty-three thousand, two hundred eighty-five".