253564855248 has 160 divisors (see below), whose sum is σ = 675956736000. Its totient is φ = 81877805568.

The previous prime is 253564855207. The next prime is 253564855277. The reversal of 253564855248 is 842558465352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 46892961 + ... + 46898367.

It is an arithmetic number, because the mean of its divisors is an integer number (4224729600).

Almost surely, 2^253564855248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253564855248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337978368000).

253564855248 is an abundant number, since it is smaller than the sum of its proper divisors (422391880752).

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

253564855248 is a wasteful number, since it uses less digits than its factorization.

253564855248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729 (or 5723 counting only the distinct ones).

The product of its digits is 46080000, while the sum is 57.

The spelling of 253564855248 in words is "two hundred fifty-three billion, five hundred sixty-four million, eight hundred fifty-five thousand, two hundred forty-eight".