It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 61249825000 = 8203 + 39303 = 30183 + 32323.
It is a congruent number.
It is an unprimeable number.
Almost surely, 261249825000 is an apocalyptic number.
61249825000 is the 116667-th centered nonagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 61249825000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94353336000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
61249825000 is a wasteful number, since it uses less digits than its factorization.
61249825000 is an odious number, because the sum of its binary digits is odd.
The spelling of 61249825000 in words is "sixty-one billion, two hundred forty-nine million, eight hundred twenty-five thousand".