1250420551232 has 56 divisors (see below), whose sum is σ = 2505014527680. Its totient is φ = 619238228480.

The previous prime is 1250420551223. The next prime is 1250420551249. The reversal of 1250420551232 is 2321550240521.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38599682 + ... + 38632062.

It is an arithmetic number, because the mean of its divisors is an integer number (44732402280).

Almost surely, 2^{1250420551232} 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 1250420551232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252507263840).

1250420551232 is an abundant number, since it is smaller than the sum of its proper divisors (1254593976448).

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

1250420551232 is a wasteful number, since it uses less digits than its factorization.

1250420551232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38139 (or 38129 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 1250420551232 its reverse (2321550240521), we get a palindrome (3571970791753).

The spelling of 1250420551232 in words is "one trillion, two hundred fifty billion, four hundred twenty million, five hundred fifty-one thousand, two hundred thirty-two".