253440310212 has 48 divisors (see below), whose sum is σ = 659816774400. Its totient is φ = 84126621600.

The previous prime is 253440310169. The next prime is 253440310213. The reversal of 253440310212 is 212013044352.

253440310212 is a `hidden beast` number, since 2 + 5 + 3 + 440 + 3 + 1 + 0 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (253440310213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4883539 + ... + 4935162.

It is an arithmetic number, because the mean of its divisors is an integer number (13746182800).

Almost surely, 2^253440310212 is an apocalyptic number.

It is an amenable number.

253440310212 is an abundant number, since it is smaller than the sum of its proper divisors (406376464188).

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

253440310212 is a wasteful number, since it uses less digits than its factorization.

253440310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9818953 (or 9818945 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 253440310212 its reverse (212013044352), we get a palindrome (465453354564).

The spelling of 253440310212 in words is "two hundred fifty-three billion, four hundred forty million, three hundred ten thousand, two hundred twelve".