253353420424 has 32 divisors (see below), whose sum is σ = 513213525720. Its totient is φ = 116558747136.

The previous prime is 253353420377. The next prime is 253353420449. The reversal of 253353420424 is 424024353352.

253353420424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 121997915524 + 131355504900 = 349282^2 + 362430^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3858967 + ... + 3924070.

Almost surely, 2^253353420424 is an apocalyptic number.

It is an amenable number.

253353420424 is an abundant number, since it is smaller than the sum of its proper divisors (259860105296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253353420424 is a wasteful number, since it uses less digits than its factorization.

253353420424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7783369 (or 7783365 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 253353420424 its reverse (424024353352), we get a palindrome (677377773776).

The spelling of 253353420424 in words is "two hundred fifty-three billion, three hundred fifty-three million, four hundred twenty thousand, four hundred twenty-four".