249553228152 has 128 divisors (see below), whose sum is σ = 664865452800. Its totient is φ = 77785049088.

The previous prime is 249553228091. The next prime is 249553228163. The reversal of 249553228152 is 251822355942.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48862383 + ... + 48867489.

It is an arithmetic number, because the mean of its divisors is an integer number (5194261350).

Almost surely, 2^249553228152 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 249553228152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332432726400).

249553228152 is an abundant number, since it is smaller than the sum of its proper divisors (415312224648).

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

249553228152 is a wasteful number, since it uses less digits than its factorization.

249553228152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885 (or 5881 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The spelling of 249553228152 in words is "two hundred forty-nine billion, five hundred fifty-three million, two hundred twenty-eight thousand, one hundred fifty-two".