253551496809 has 32 divisors (see below), whose sum is σ = 383033718144. Its totient is φ = 148111787520.

The previous prime is 253551496777. The next prime is 253551496831. The reversal of 253551496809 is 908694155352.

It is a happy number.

253551496809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253551496809 - 2⁵ = 253551496777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253551496109) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2083659 + ... + 2201984.

It is an arithmetic number, because the mean of its divisors is an integer number (11969803692).

Almost surely, 2^253551496809 is an apocalyptic number.

It is an amenable number.

253551496809 is a deficient number, since it is larger than the sum of its proper divisors (129482221335).

253551496809 is a wasteful number, since it uses less digits than its factorization.

253551496809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285737.

The product of its (nonzero) digits is 11664000, while the sum is 57.

The spelling of 253551496809 in words is "two hundred fifty-three billion, five hundred fifty-one million, four hundred ninety-six thousand, eight hundred nine".