253129213828 has 12 divisors (see below), whose sum is σ = 447542889052. Its totient is φ = 125259816960.

The previous prime is 253129213787. The next prime is 253129213837. The reversal of 253129213828 is 828312921352.

It can be written as a sum of positive squares in 2 ways, for example, as 176129623684 + 76999590144 = 419678^2 + 277488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326197053 + ... + 326197828.

Almost surely, 2^253129213828 is an apocalyptic number.

It is an amenable number.

253129213828 is a deficient number, since it is larger than the sum of its proper divisors (194413675224).

253129213828 is a wasteful number, since it uses less digits than its factorization.

253129213828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652394982 (or 652394980 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The spelling of 253129213828 in words is "two hundred fifty-three billion, one hundred twenty-nine million, two hundred thirteen thousand, eight hundred twenty-eight".