253435543220 has 12 divisors (see below), whose sum is σ = 532214640804. Its totient is φ = 101374217280.

The previous prime is 253435543217. The next prime is 253435543267. The reversal of 253435543220 is 22345534352.

It can be written as a sum of positive squares in 2 ways, for example, as 33367598224 + 220067944996 = 182668^2 + 469114^2 .

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 3 ways as a sum of consecutive naturals, for example, 6335888561 + ... + 6335888600.

It is an arithmetic number, because the mean of its divisors is an integer number (44351220067).

Almost surely, 2^253435543220 is an apocalyptic number.

253435543220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253435543220 is an abundant number, since it is smaller than the sum of its proper divisors (278779097584).

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

253435543220 is a wasteful number, since it uses less digits than its factorization.

253435543220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12671777170 (or 12671777168 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 38.

The spelling of 253435543220 in words is "two hundred fifty-three billion, four hundred thirty-five million, five hundred forty-three thousand, two hundred twenty".