61250520000 has 280 divisors, whose sum is σ = 204345850896. Its totient is φ = 16185344000.

The previous prime is 61250519977. The next prime is 61250520011. The reversal of 61250520000 is 2505216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13557742 + ... + 13562258.

Almost surely, 2^61250520000 is an apocalyptic number.

61250520000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61250520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102172925448).

61250520000 is an abundant number, since it is smaller than the sum of its proper divisors (143095330896).

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

61250520000 is a wasteful number, since it uses less digits than its factorization.

61250520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665 (or 4640 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 61250520000 in words is "sixty-one billion, two hundred fifty million, five hundred twenty thousand".