36561530250 has 512 divisors, whose sum is σ = 128098713600. Its totient is φ = 7519564800.

The previous prime is 36561530219. The next prime is 36561530297. The reversal of 36561530250 is 5203516563.

36561530250 is a `hidden beast` number, since 3 + 6 + 5 + 615 + 30 + 2 + 5 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 18473761 + ... + 18475739.

It is an arithmetic number, because the mean of its divisors is an integer number (250192800).

Almost surely, 2^36561530250 is an apocalyptic number.

36561530250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36561530250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64049356800).

36561530250 is an abundant number, since it is smaller than the sum of its proper divisors (91537183350).

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

36561530250 is a wasteful number, since it uses less digits than its factorization.

36561530250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2036 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 36561530250 in words is "thirty-six billion, five hundred sixty-one million, five hundred thirty thousand, two hundred fifty".